Biology GK Questions in English are essential for students preparing for competitive exams and improving their understanding of key concepts in life sciences.
One-Liner Biology GK Questions in English
What is the powerhouse of the cell?
Which element is a central component of chlorophyll?
What is the basic unit of life?
Who is known as the father of genetics?
What does DNA stand for?
What is the study of fungi called?
Which blood group is known as the universal donor?
What is the function of the ribosome?
What is the largest human organ?
What is the term for animals that eat only plants?
What is the boiling point of water in Celsius?
What kind of cells lack a nucleus?
What vitamin is produced in the skin in sunlight?
What pigment gives plants their green color?
Name the smallest bone in the human body.
What is the normal pH of human blood?
What is the main excretory product in humans?
Which gas do plants absorb for photosynthesis?
What part of the cell contains genetic information?
What is the study of heredity and variation called?
What tissue connects bones to muscles?
What organelle is responsible for photosynthesis in plants?
Which protein makes up hair and nails?
What is the scientific name for humans?
What are white blood cells also called?
What is the scientific term for water loss in plants?
Which human organ removes toxins from blood?
How many pairs of chromosomes are in human cells?
What is the process of breaking down food for energy?
Which vitamin helps with blood clotting?
What type of reproduction involves a single parent?
What is the male reproductive organ of a flower called?
Which disease is caused by Plasmodium?
What structure helps amoeba move?
What is the function of the mitochondria?
Name the largest artery in the human body.
What is the main constituent of hemoglobin?
What is the term for an animal with a backbone?
What is the process of water movement through a plant?
Which cells carry oxygen in the blood?
What is the main source of energy for living organisms?
Which hormone regulates blood sugar?
What is the fluid part of blood called?
Which organism causes tuberculosis?
What kind of symmetry do starfish have?
What part of the brain controls balance?
What is an organism that feeds on dead matter called?
Which enzyme breaks down starch in the mouth?
What type of blood cells fight infection?
What is the chemical formula for water?
Biology GK Questions in English With Answers
Mitochondria
Magnesium
Cell
Gregor Mendel
Deoxyribonucleic Acid
Mycology
Blood group O
Protein synthesis
Skin
Herbivores
100°C
Prokaryotic cells
Vitamin D
Chlorophyll
Stapes
Approximately 7.4
Urea
Carbon dioxide
Nucleus
Genetics
Tendon
Chloroplast
Keratin
Homo sapiens
Leukocytes
Transpiration
Liver
23 pairs
Digestion
Vitamin K
Asexual reproduction
Stamen
Malaria
Pseudopodia
Energy production
Aorta
Iron
Vertebrate
Transpiration
Red blood cells (erythrocytes)
Sunlight (via food chain)
Insulin
Plasma
Mycobacterium tuberculosis
Radial symmetry
Cerebellum
Decomposer
Amylase
White blood cells (leukocytes)
H₂O
Key Takeaways of Biology GK Questions in English
Basic knowledge of cell structure is essential for biology.
Genetics is a vital study area in life sciences.
Photosynthesis and respiration are key biological processes.
Blood groups and their importance in transfusions matter.
Human anatomy contains many interesting facts.
Reproduction in plants and animals shows variety.
Disease-causing organisms are a crucial study aspect.
Vitamins play significant roles in human health.
The human body’s systems work together for survival.
What is the name of the new Covid-19 variant growing rapidly in the US?
What percentage of new Coronavirus cases were attributed to JN.1 in recent weeks?
How is JN.1 related to the BA.2.86 variant?
What action has the Union Health Ministry in India taken in response to JN.1?
What is the origin country of the JN.1 variant?
What mutation does JN.1 have, and what are its properties?
What has the Ministry of Health and Family Welfare in India advised regarding Covid-19?
Which university will grant maternity leave to female researchers and students?
What recent service did the Chief Minister of Karnataka inaugurate?
What stake did Sun Pharmaceuticals Ltd acquire in Lyndra Therapeutics Inc?
What is the purpose of the new menopause drug approved in the UK?
What is the mechanism of action of Veozatm (fezolinetant)?
What was WHO’s recent statement regarding the JN.1 Covid sub-variant?
What is the initiative in Himachal Pradesh’s Spiti valley for pregnant women?
Which drug is projected to lead in the obesity and diabetes market according to GlobalData?
Answers-Quiz on Health-Latest
The rapidly growing Covid-19 variant in the US is named JN.1.
JN.1 was responsible for more than 20% of new Coronavirus cases in recent weeks.
JN.1 is very similar to the BA.2.86 variant, differing only by a single change in the spike protein.
The Union Health Ministry in India issued an advisory to states over the detection of JN.1.
JN.1 was first detected in Luxembourg.
JN.1 contains the L455S mutation, which has immune-evasion properties.
The Ministry of Health and Family Welfare in India advised maintaining constant vigil against Covid-19.
Lucknow University will grant maternity leave to female researchers and students from the academic session 2023-24.
Karnataka Chief Minister Siddaramaiah inaugurated the Linear Accelerator Radiation Therapy Service at Baptist Hospital.
Sun Pharmaceuticals Ltd acquired a 16.7% stake in Lyndra Therapeutics Inc.
The UK approved a menopause drug, Veozatm (fezolinetant), to prevent hot flashes.
Veozatm works by blocking neurokinin B (NKB) in the brain to reduce menopause symptoms.
WHO called for increased surveillance due to the rise in cases attributed to the JN.1 Covid sub-variant.
Himachal Pradesh’s Spiti valley will start an initiative for a healthy pregnancy for low-income groups.
Eli Lilly’s Mounjaro is expected to surpass Novo Nordisk’s Ozempic in the obesity and diabetes market.
Quiz on Health-Latest-September 9, 2023
Questions:
What is the correlation between cyberbullying and eating disorder symptoms according to a study?
How does the new AI tool help people with Parkinson’s disease?
How many taps of a finger does the AI tool for Parkinson’s require?
What new device have US engineers developed related to dental health?
What severe health problems can periodontal diseases lead to?
What is the earliest form of gum disease?
Why were some Chinese games banned in India?
Who developed the game Battlegrounds Mobile India?
What advisory did Drug Controller General of India issue about Digene Gel?
What difference was found in two bottles of Digene Gel mint flavour from the same batch?
Why are females more resilient to kidney disease and injury than males?
Which hormone was linked to resilience against kidney diseases in a mice study?
What method helps in early detection of autism risk in toddlers?
What behavior predicts autism in children according to the JAMA studies?
Why has a former executive of Goldman Sachs sued the bank?
How many active cases of dengue have been detected in Bihar?
Which district in Bihar has reported the highest dengue cases?
What health priorities has India identified under its G20 presidency according to WHO’s Regional Director?
How contagious is the Omicron sub variant BA.2.86 according to new US studies?
What percentage of Indian families have faced unknown side effects from medicines?
What disease did the 57-year-old man suffer from before undergoing a lung transplant at Global Hospital?
How long did the lung transplant surgery at Global Hospital last?
What unusual side effect did a six-month-old baby boy from Thailand experience after a Covid-19 antiviral treatment?
Answers:
Cyberbullying is associated with a higher risk of experiencing eating disorder symptoms in 10-14 years old.
The AI tool helps people with Parkinson’s disease remotely assess the severity of their symptoms.
The AI tool requires 10 taps of the finger.
US engineers developed a device that warns consumers about early risks of tooth decay.
Periodontal diseases can lead to heart disease, tooth loss, stroke, and other major diseases.
Gingivitis.
They were banned over national security reasons.
South Korean video game developer Krafton.
An advisory to discontinue the use of antacid Digene Gel manufactured by Abbott India.
One bottle was of regular taste (sweet) and light pink color, while another was white with a bitter taste and pungent odor.
Testosterone, a male sex hormone, plays a role.
Testosterone.
Tracking eye movements.
Measuring children’s looking behavior.
He claimed a “dysfunctional” workplace culture and “working excessive hours” caused “mental health” issues.
325 active cases.
Bhagalpur district.
Strengthen the global health infrastructure, deliver health, and provide universal health coverage.
It is less contagious and immune evasive.
52 per cent.
Interstitial lung disease.
12 hours.
His eyes turned an unusual shade of blue.
Quiz on Health-Latest-July 31, 2023
What health benefits were associated with daily strawberry consumption in the study? Answer: Improved cognitive function, lower blood pressure, and higher antioxidant capacity.
How did US doctors use brain implants and AI to help a quadriplegic man? Answer: They used brain implants and AI to restore the sense of touch and movement.
What effect can low fibre intake during pregnancy have on baby’s brain development? Answer: It may delay the development in baby’s brains.
Which nutrients are often consumed in too small amounts during pregnancy? Answer: Dietary fibre, vitamin C, and folic acid.
What diseases have been on the rise in the National Capital Region due to unusual rains? Answer: Hepatitis A and E, and eye flu.
What is the goal of Somali health authorities and the WHO regarding viral hepatitis? Answer: To eliminate viral hepatitis in the country by 2030.
In which region of Ethiopia has the cholera outbreak spread to, as disclosed by the WHO? Answer: The Southern Nations, Nationalities, and Peoples’ Region (SNNP Region).
What fellowship programme has been announced by the Vattikuti Foundation in India? Answer: The 2023 Fellowship programme for surgeons with super-specialist qualifications.
How did a team of doctors overcome ABO incompatibility in a liver transplant procedure? Answer: Willing donors exchanged organs to match the blood groups of the recipients.
What does the wearable ultrasound device designed by a team of researchers aim to detect? Answer: Tumours when they are still in early stages.
Difference between Self Pollination and Cross Pollination
Difference between Self Pollination and Cross Pollination
Self-Pollination vs. Cross-Pollination: The Differences Introductionon Difference between Self Pollination and Cross Pollination An essential step in plant reproduction is pollination. It entails the movement of pollen grains from a flower’s male reproductive organs to its female reproductive organs, which results in fertilisation and the development of seeds. Self-pollination and cross-pollination are the two primary methods of pollination. Despite the fact that they both aid in plant reproduction, there are important distinctions between the two procedures. We shall examine the differences between self-pollination and cross-pollination in this article, illuminating their mechanics, benefits, drawbacks, and practical applications.
Self-Pollination Self-Pollination: What is it? When pollen grains from one bloom’s anther are transferred to that flower’s stigma or the stigma of another flower on the same plant, self-pollination takes place. This demonstrates that the pollen utilised for fertilisation originates from a single plant. Self-pollinating plants may reproduce on their own without the aid of other organisms because they contain both male and female reproductive parts in the same bloom.
Consistency and Reliability are two benefits of self-pollination since plants do not rely on outside forces like the wind or insects for reproduction. Because of this, plants can reproduce even in harsh or isolated situations.
Preserving good features: Self-pollination helps a plant species maintain good features. Self-pollination guarantees that advantageous qualities will be passed down to the progeny, resulting in a more reliable and predictable crop when a plant possesses them.
Efficiency in Time and Energy: Self-pollination saves time because plants don’t need to rely on outside pollinators. They don’t need to grow spectacular flowers or entice pollinators in order to reproduce; they can do so at their own leisure.
Limiting Genetic Variation: Self-pollination has the negative effect of reducing the genetic diversity within a plant species. It is more likely for dangerous mutations to accumulate and inbreed because the pollen used for fertilisation originates from the same plant. This can eventually result in diminished fitness and increased susceptibility to illnesses and environmental disturbances.
Lack of Adaptability: Self-pollinating plants could have a hard time adjusting to shifting environmental factors. Without the exchange of new genetic material through cross-pollination, they would not have the genetic diversity needed to adapt to threats like pests, illnesses, and climatic changes.
Possibility of Negative Traits: Possibility of negative traits is increased by self-pollination. Self-pollination enhances the possibility that undesired features will be displayed in the offspring if a plant possesses recessive genes for such traits.
Cross-Pollination Cross-Pollination: What is it? When pollen grains are transmitted from the anther of one bloom to the stigma of another flower or another plant of the same species, the process is known as cross-pollination, also known as allogamy. In order to transmit the pollen in this method of pollination, outside elements like wind, water, insects, birds, or mammals are needed.
Genetic Diversity Benefits of Cross-Pollination: Cross-pollination encourages genetic diversity within plant populations. It enhances the likelihood of creating offspring with advantageous features that improve the adaptability, vigour, and resilience of the species by fusing the genetic material from several individuals.
Genetically Fitter Offspring: Cross-pollination enables the blending of genetic material, producing offspring with higher genetic fitness. As a result, the organism may be better able to withstand illnesses, pests, and environmental stresses and adapt to shifting environmental conditions.
Cross-pollination also has the substantial benefit of preventing outbreeding depression. When individuals from genetically separate groups or species mate and have children, this is referred to as outbreeding depression. It often occurs when genetic incompatibilities between populations or species cause the hybrids to be less fit or viable.
Plants can reduce their risk of inbreeding depression and raise the likelihood that their offspring will be strong and healthy by encouraging cross-pollination. The introduction of genetic material from various individuals or populations boosts the total genetic diversity within the species while lowering the danger of inheriting deleterious recessive characteristics.
Plants have the chance to acquire additional alleles through cross-pollination, and these alleles may have benefits like better disease resistance, increased tolerance to environmental challenges, or improved reproductive performance. This genetic diversity may result in offspring with better levels of fitness, allowing them to flourish in variable or difficult environments.
Additionally, cross-pollination can stop a population from developing harmful mutations. Recessive alleles that cause disease are less likely to be shared by two individuals when people from diverse genetic origins mate. This lessens the expression of negative features and aids in maintaining the population’s general health and adaptability.
Cross-pollination is essential for preserving the long-term viability of plant populations in natural settings. It ensures the genetic material of people from various regions is mixed, preventing the loss of genetic variety and the potential demise of populations as a result of the effects of inbreeding. When populations are physically separated from one another or in fragmented landscapes, this genetic exchange is more important.
Cross-pollination drawbacks include dependence on outside agents. External agents are necessary for the pollen transport during cross-pollination. Since plants rely on the availability and efficiency of various agents, like pollinators or wind, there is some uncertainty introduced by this. The populations of these agents may be impacted by elements like habitat loss, pesticide use, and temperature change, which may result in less successful pollination.
Cross-pollination necessitates that plants expend energy and resources on creating enticing blooms, nectar, or pollen to draw in pollinators. For plants, this procedure can be expensive in terms of energy use and resource allocation.
Risk of Hybridization: While genetic variety is generally a good thing, there is a chance that closely related species will hybridise when they cross-pollinate. Future generations may be less viable if hybrids are produced because they may have lower fitness or are unable to successfully breed.
Examples of Self-Pollination and Cross-Pollination in the Real World Example of Self-Pollination Plants that promote self-pollination include pea plants, which have a special reproductive system. Because the anther and stigma are contained within the same flower, pollen grains can move between them with ease. Due to their continuous crop yield and dependable self-pollination, peas are frequently grown in gardens and farms.
Tomatoes: The movement of the flower’s reproductive components helps tomato blossoms self-pollinate. These plants can, however, also be crossed-pollinated by wind or insects. This adaptability ensures a backup strategy of reproduction while allowing for genetic variety.
Examples of Cross-Pollination Cross-pollination is necessary for apple trees to yield fruit. While apple trees may contain both male and female reproductive organs, distinct trees with solely male or female flowers are frequently found on them. These trees’ successful fertilisation and fruit production depend on the transport of pollen between them by bees and other pollinators.
Sunflowers: Popular for their vivid yellow blossoms, sunflowers draw pollinators like bees and butterflies. By transferring pollen between the flowers, these insects encourage cross-pollination. Cross-pollination produces genetic diversity, which helps explain why there are so many different species and cultivars of sunflowers.
Answers to Frequently Asked Questions: Difference between Self Pollination and Cross Pollination Do plants self-pollinate more frequently than they cross-pollinate? Yes, self-pollination occurs more frequently in plants, particularly in those with tiny, discrete blooms. Even in the absence of outside factors like pollinators, it is a productive mechanism of reproduction that guarantees seed production.
2. Do any plants have the ability to cross-pollinate and self-pollinate? Yes, many plants are capable of self- and cross-pollination, depending on a variety of variables like the environment, the presence of pollinators, and genetic characteristics. Tomatoes, beans, and certain kinds of roses are a few examples.
3. Can a species become extinct as a result of self-pollination? Self-pollination has the potential to lower genetic diversity and a species’ fitness, but it is unlikely to be the primary cause of extinction. On the other hand, over time, a species may become more vulnerable to illnesses, alterations in the environment, and other dangers due to a lack of genetic variety.
4. If plants are spread out across a large area, how can they assure cross-pollination? To ensure cross-pollination even when individuals are spread out, plants use a variety of processes. These techniques include creating a lot.
Conclusion In conclusion, the source of pollen employed for fertilisation distinguishes self-pollination from cross-pollination. Within a single flower or plant, self-pollination occurs, offering benefits including regularity and dependability while reducing genetic variety. The transmission of pollen across flowers or plants, or cross-pollination, promotes genetic variety and improves adaptability and fitness.
Both self-pollination and cross-pollination have benefits and drawbacks, and various plant species have evolved tactics that are appropriate for their particular requirements and environmental contexts. For plant breeding, environmental conservation, and agricultural practises, it is critical to comprehend the workings and effects of these pollination techniques.
For natural ecosystems and agricultural systems to successfully cross-pollinate, pollinators like bees and other insects must be encouraged and protected. By assisting these vital pollinators, we can protect the genetic variety and long-term viability of plant populations, enhancing the health and wellbeing of the ecosystems on our planet.
Are you ready for the biology quiz for class 7 with answers? Let’s test our biology knowledge with the class 7 quiz with answers. The biology quiz for class 7 with answers is your chance to shine! Don’t miss out on the opportunity to challenge yourself with the biology quiz for class 7 with answers. Get ready to impress your teacher with your performance in the biology quiz for class 7 with answers. The class 7 biology quiz with answers is a fun way to test our understanding. Let’s aim for excellence in the biology quiz for class 7 with answers. The biology quiz for class 7 with answers will be a great learning experience. The class 7 biology quiz with answers is the perfect opportunity to showcase your knowledge. Let’s make the most of the biology quiz for class 7 with answers and learn from our mistakes. The biology quiz for class 7 with answers will inspire us to learn more. The biology quiz for class 7 with answers will help us identify our strengths and weaknesses. The biology quiz for class 7 with answers will be a stepping stone towards mastering the subject. Sharpen your biology skills with the upcoming class 7 quiz with answers. Let’s embrace the challenge of the biology
Biology Quiz for Class 7 with Answers on food components:
Q: What are the three main components of food? A: Carbohydrates, proteins, and fats.
Q: What is the primary function of carbohydrates in the body? A: Providing energy.
Q: What are proteins made up of? A: Amino acids.
Q: Which food component is essential for growth and repair of body tissues? A: Proteins.
Q: What are the two types of dietary fiber? A: Soluble fiber and insoluble fiber.
Q: What is the main function of dietary fiber? A: Promoting healthy digestion and preventing constipation.
Q: Which food component provides the highest amount of energy per gram? A: Fats.
Q: What are the two types of fats? A: Saturated fats and unsaturated fats.
Q: What is the function of fats in the body? A: Providing energy, insulation, and protection to organs.
Q: What are vitamins? A: Organic compounds required in small amounts for various metabolic processes.
Q: What is the primary source of vitamin D? A: Sunlight.
Q: What is the function of vitamin C in the body? A: It helps in the formation of collagen and boosts the immune system.
Q: What is the main function of minerals in the body? A: Regulating body processes and maintaining overall health.
Q: Which mineral is essential for strong bones and teeth? A: Calcium.
Q: What are antioxidants? A: Substances that protect the body from damage caused by free radicals.
Q: Which food component provides quick energy? A: Carbohydrates.
Q: What are simple carbohydrates? A: Sugars such as glucose and fructose.
Q: What are complex carbohydrates? A: Starches and fibers found in grains, legumes, and vegetables.
Q: What is the main function of dietary proteins? A: Building and repairing tissues, producing enzymes and hormones.
Q: Which food components are known as macronutrients? A: Carbohydrates, proteins, and fats.
Q: What are micronutrients? A: Nutrients required in small amounts, including vitamins and minerals.
Q: What is the role of water in the body? A: Maintaining hydration, regulating body temperature, and facilitating metabolic processes.
Q: What are the major sources of dietary iron? A: Red meat, spinach, and legumes.
Q: What is the main function of vitamin A? A: It is important for vision, immune function, and cell growth.
Q: Which food component helps in the absorption of fat-soluble vitamins? A: Dietary fats.
Q: What is the function of phosphorus in the body? A: It is necessary for bone health and energy metabolism.
Q: What is the main function of vitamin B12? A: It is essential for the formation of red blood cells and maintaining a healthy nervous system.
Q: What are probiotics? A: Live bacteria that are beneficial for gut health and digestion.
Q: What are the major sources of vitamin E? A: Nuts, seeds, and vegetable oils.
Q: What are the functions of sodium in the body? A: Maintaining fluid balance, nerve function, and muscle contraction.
Biology Quiz for Class 7 with Answers(Additional)
What is the process by which plants make their own food called? – The process is called photosynthesis. What are the tiny openings on the leaves of a plant called? – The tiny openings are called stomata. What is the pigment that gives leaves their green color called? – The pigment is called chlorophyll. What is the function of the roots in a plant? – The function of the roots is to anchor the plant and absorb water and nutrients from the soil. What is the name of the gas that is produced during respiration? – The gas is called carbon dioxide. What is the name of the process by which organisms exchange gases with their environment? – The process is called respiration. What is the name of the process by which living organisms produce offspring? – The process is called reproduction. What is the name of the substance that carries oxygen in the blood? – The substance is called hemoglobin. What is the name of the process by which plants and animals release waste? – The process is called excretion. What is the name of the structure that allows birds to fly? – The structure is called wings. What is the name of the body system that protects the body from disease? – The system is called the immune system. What is the name of the pigment that gives skin its color? – The pigment is called melanin. What is the name of the body system that controls and coordinates body functions? – The system is called the nervous system. What is the name of the organ that pumps blood throughout the body? – The organ is called the heart. What is the name of the organ that filters waste from the blood? – The organ is called the kidney. What is the name of the body system that breaks down food for energy? – The system is called the digestive system. What is the name of the process by which plants and animals use oxygen to release energy from food? – The process is called cellular respiration. What is the name of the cell organelle that produces energy for the cell? – The organelle is called the mitochondria. What is the name of the substance that carries genetic information in cells? – The substance is called DNA. What is the name of the body system that helps the body move and support itself? – The system is called the skeletal system. What is the name of the process by which plants grow towards the light? – The process is called phototropism. What is the name of the organ that helps humans breathe? – The organ is called the lungs. What is the name of the process by which plants produce seeds? – The process is called pollination. What is the name of the body system that regulates hormones? – The system is called the endocrine system. What is the name of the body system that takes in oxygen and removes carbon dioxide? – The system is called the respiratory system. What is the name of the body system that transports nutrients and oxygen to the body’s cells? – The system is called the circulatory system. What is the name of the process by which organisms convert food into usable energy? – The process is called metabolism. What is the name of the process by which organisms break down dead organisms and waste? – The process is called decomposition. What is the name of the process by which living organisms respond to changes in their environment? – The process is called adaptation. What is the name of the structure that holds DNA in a cell? – The structure is called the nucleus.
What is the name of the system that is responsible for movement in the body? – The system is called the muscular system. What is the name of the process by which plants reproduce asexually? – The process is called vegetative propagation. What is the name of the process by which animals change their appearance to blend in with their environment? – The process is called camouflage. What is the name of the process by which energy is transferred from one organism to another in a food chain? – The process is called energy transfer. What is the name of the structure that supports the plant and transports water and nutrients? – The structure is called the stem. What is the name of the cell organelle that packages and distributes proteins in the cell? – The organelle is called the Golgi apparatus. What is the name of the process by which organisms reproduce by dividing into two identical cells? – The process is called mitosis. What is the name of the body system that controls growth and development? – The system is called the endocrine system. What is the name of the process by which organisms convert nitrogen gas into usable forms of nitrogen? – The process is called nitrogen fixation. What is the name of the system that is responsible for filtering and removing waste from the blood? – The system is called the urinary system. What is the name of the body system that produces and secretes hormones? – The system is called the endocrine system. What is the name of the process by which cells reproduce sexually? – The process is called meiosis. What is the name of the structure that carries water and nutrients from the roots to the leaves of a plant? – The structure is called the xylem. What is the name of the process by which animals change their behavior to survive in their environment? – The process is called adaptation. What is the name of the body system that protects the body from physical damage and infection? – The system is called the integumentary system. What is the name of the process by which a caterpillar transforms into a butterfly? – The process is called metamorphosis. What is the name of the body system that produces and delivers sperm and eggs for reproduction? – The system is called the reproductive system. What is the name of the process by which organisms use sunlight to produce food? – The process is called photosynthesis. What is the name of the body system that regulates and maintains the body’s internal environment? – The system is called the homeostatic system. What is the name of the process by which organisms break down glucose to produce energy without oxygen? – The process is called fermentation.
Biology Important One Liners(Explanation)-Biology Quiz for Class 7 with Answers
The muscular system allows for movement in the body through the contraction and relaxation of muscles.
Vegetative propagation is a form of asexual reproduction in plants where new individuals grow from existing plant parts.
Camouflage is the adaptation of an organism’s appearance to blend in with its surroundings for protection from predators.
Energy transfer is the movement of energy from one organism to another through the food chain.
The stem supports the plant and transports water and nutrients from the roots to the leaves.
The Golgi apparatus packages and distributes proteins to different parts of the cell or to be secreted out of the cell.
Mitosis is the process of cell division where one cell splits into two identical daughter cells.
The endocrine system produces and releases hormones that regulate growth, development, and other bodily functions.
Nitrogen fixation is the conversion of nitrogen gas into ammonia or other usable forms of nitrogen by certain bacteria.
The urinary system filters waste from the blood and eliminates it from the body through urine.
The endocrine system produces hormones that regulate bodily functions such as metabolism, growth, and reproduction.
Meiosis is the process of cell division that produces four genetically diverse daughter cells with half the number of chromosomes as the parent cell.
The xylem is a vascular tissue that carries water and nutrients from the roots to the leaves of a plant.
Adaptation is the process by which animals change their behavior, physiology, or anatomy to survive in their environment.
The integumentary system is responsible for protecting the body from physical damage and infections through the skin, hair, and nails.
Metamorphosis is the process of complete transformation of an organism, such as a caterpillar to a butterfly.
The reproductive system produces and delivers sperm and eggs for fertilization and reproduction.
Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.
The homeostatic system maintains the body’s internal environment by regulating bodily functions such as temperature and pH.
Fermentation is the process by which organisms break down glucose to produce energy without the use of oxygen.
Biology Quiz for Class 7 with Answers Video
Another video on Biology Quiz for Class 7 with Answers
Let’s take a deep dive into the fascinating world of biodiversity with our quiz on biodiversity.
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Welcome to the Biodiversity Quiz! Here are 10 rounds of 10 questions each, all about biodiversity in India and the world. Each question has one correct answer. Good luck!
Quiz on Biodiversity: Round 1: Biodiversity Basics
What does the term “biodiversity” refer to? Answer: The variety of life on Earth, including all living organisms and the ecosystems they inhabit.
What are the three levels of biodiversity? Answer: The three levels of biodiversity are genetic diversity, species diversity, and ecosystem diversity.
What is the importance of biodiversity? Answer: Biodiversity provides essential ecosystem services, such as air and water purification, pollination, and soil health. It also has cultural and aesthetic value and is a source of food, medicine, and other resources.
What are the main threats to biodiversity? Answer: The main threats to biodiversity are habitat loss and degradation, climate change, pollution, overexploitation of resources, and invasive species.
What is the Convention on Biological Diversity? Answer: The Convention on Biological Diversity is an international treaty signed by 196 countries that aims to conserve and sustainably use biodiversity, and to ensure the fair and equitable sharing of its benefits.
How many species of plants and animals are estimated to exist on Earth? Answer: It is estimated that there are between 5 and 10 million species of plants and animals on Earth, although only about 1.5 million have been identified and named so far.
What is the difference between endemic and invasive species? Answer: Endemic species are native to a particular region and are found nowhere else, while invasive species are non-native and have the potential to cause harm to the ecosystem they invade.
What is the IUCN Red List? Answer: The IUCN Red List is a comprehensive database of the conservation status of species, ranging from least concern to extinct, and is widely used as a tool for conservation planning and decision-making.
What is the difference between extinction and extirpation? Answer: Extinction refers to the complete disappearance of a species from the Earth, while extirpation refers to the disappearance of a species from a particular geographic area, but not globally.
What is the main goal of conservation biology? Answer: The main goal of conservation biology is to understand and protect the diversity of life on Earth, with an emphasis on preventing the extinction of species and preserving their habitats.
Quiz on Biodiversity:Round 2: Biodiversity in India
How many recognized national parks are there in India? Answer: There are 104 recognized national parks in India.
Which national park is home to the Indian one-horned rhinoceros? Answer: Kaziranga National Park, located in the state of Assam, is home to the Indian one-horned rhinoceros.
Which species of antelope is found only in India and Nepal? Answer: The Nilgai, also known as the blue bull, is found only in India and Nepal.
Which state in India has the highest number of tigers? Answer: Madhya Pradesh has the highest number of tigers in India, with an estimated population of over 500.
What is the name of the wetland in Gujarat that is designated as a Ramsar site? Answer: The Nalsarovar Bird Sanctuary in Gujarat is designated as a Ramsar site.
Which species of primate is found only in the Western Ghats of India? Answer: The lion-tailed macaque is found only in the Western Ghats of India.
What is the name of the bird sanctuary located in the Keoladeo National Park in Rajasthan? Answer: The Keoladeo Ghana National Park in Rajasthan
Which state in India is known for the highest diversity of butterflies? Answer: The state of Sikkim is known for having the highest diversity of butterflies in India.
Which is the largest bird sanctuary in India? Answer: The largest bird sanctuary in India is the Harike Wetland, located in the state of Punjab.
Which species of deer is found only in the Andaman and Nicobar Islands? Answer: The Andaman and Nicobar Islands are home to the spotted deer, a species that is found only in these islands.
Quiz on Biodiversity:Round 3: Biodiversity Hotspots
What is a biodiversity hotspot? Answer: A biodiversity hotspot is a biogeographic region that is both biologically rich and threatened, with a high proportion of endemic species and a high level of habitat loss.
How many biodiversity hotspots are there in the world? Answer: There are 36 biodiversity hotspots in the world, covering only 2.4% of the Earth’s land surface, but containing over half of all plant and terrestrial vertebrate species.
Which biodiversity hotspot is located in the Caribbean? Answer: The Caribbean Islands biodiversity hotspot includes the islands of the Caribbean Sea, as well as the Bahamas and the Turks and Caicos Islands.
Which biodiversity hotspot is located in the Mediterranean Basin? Answer: The Mediterranean Basin biodiversity hotspot includes the countries surrounding the Mediterranean Sea, as well as parts of the Middle East and North Africa.
Which biodiversity hotspot is located in Central America? Answer: The Mesoamerican biodiversity hotspot includes the countries of Central America, as well as parts of Mexico and Colombia.
Which biodiversity hotspot is located in South America? Answer: The Tropical Andes biodiversity hotspot includes the Andes mountain range, as well as parts of Ecuador, Peru, Bolivia, Colombia, Venezuela, and Argentina.
Which biodiversity hotspot is located in Southeast Asia? Answer: The Sundaland biodiversity hotspot includes parts of Malaysia, Indonesia, and the Philippines, as well as the island of Borneo.
Which biodiversity hotspot is located in India? Answer: The Western Ghats and Sri Lanka biodiversity hotspot includes the mountain range of the Western Ghats in India, as well as the island of Sri Lanka.
Which biodiversity hotspot is located in Africa? Answer: The Cape Floristic Region biodiversity hotspot includes the southwestern tip of South Africa, as well as the island of Madagascar.
Which biodiversity hotspot is located in Australia? Answer: The Southwest Australia biodiversity hotspot includes the southwest corner of Australia, including the state of Western Australia.
Quiz on Biodiversity: Round 4: Endangered Species
What does it mean for a species to be endangered? Answer: A species is considered endangered when it is at risk of extinction, with a very small population size and/or a declining population trend.
Which species of rhinoceros is critically endangered? Answer: The Javan rhinoceros and the Sumatran rhinoceros are both critically endangered, with populations of less than 80 and 200 individuals, respectively.
Which species of great ape is the most endangered? Answer: The Sumatran orangutan is the most endangered species of great ape, with a population of less than 14,000 individuals.
Which species of big cat is the most endangered? Answer: The Amur leopard is the most endangered species of big cat, with a population of less than 100 individuals.
Which species of sea turtle is the most endangered? Answer: The Kemp’s ridley sea turtle is the most endangered species of sea turtle, with a population of less than 1,000 nesting females.
Which species of pangolin is the most trafficked? Answer: The Chinese pangolin and the Sunda pangolin are the most trafficked species of pangolin, due to high demand for their scales and meat in traditional medicine and cuisine.
Which species of elephant is the most endangered? Answer: The forest elephant is the most endangered species of elephant, with a population decline of over 86% in the last three decades due to habitat loss and poaching.
Which species of bird is the most endangered? Answer: The Madagascar pochard is the most endangered species of bird, with only a handful of individuals remaining in the wild.
Which species of primates are critically endangered and found only in India? Answer: The Western Hoolock Gibbon and the Lion-tailed Macaque are two species of primates found only in India and are listed as critically endangered.
Which species of shark is the most endangered? Answer: The sawfish is the most endangered species of shark, with all species of sawfish listed as critically endangered due to overfishing, habitat loss, and other human activities.
Quiz on Biodiversity:Round 5: Conservation Efforts
What is the Convention on Biological Diversity? Answer: The Convention on Biological Diversity is an international treaty aimed at conserving biodiversity, promoting sustainable use of natural resources, and ensuring the fair and equitable sharing of benefits from the use of genetic resources.
What is the Red List of Threatened Species? Answer: The Red List of Threatened Species is a comprehensive inventory of the global conservation status of plant and animal species, developed by the International Union for Conservation of Nature (IUCN).
What is the goal of the Aichi Biodiversity Targets? Answer: The Aichi Biodiversity Targets are a set of 20 goals adopted by the parties to the Convention on Biological Diversity in 2010, aimed at halting the loss of biodiversity and promoting its sustainable use by 2020.
Which is the largest wildlife conservation organization in the world? Answer: The World Wildlife Fund (WWF) is the largest wildlife conservation organization in the world, with a presence in over 100 countries.
Which is the world’s largest protected area? Answer: The Northeast Greenland National Park is the world’s largest protected area, covering an area of over 970,000 square kilometers in Greenland.
Which is the largest conservation area in India? Answer: The Great Nicobar Biosphere Reserve is the largest conservation area in India, covering an area of over 885 square kilometers in the Andaman and Nicobar Islands.
Which is the world’s largest coral reef system? Answer: The Great Barrier Reef is the world’s largest coral reef system, covering an area of over 344,000 square kilometers off the coast of Australia.
Which is the world’s largest rainforest? Answer: The Amazon rainforest is the world’s largest rainforest, covering an area of over 6.7 million square kilometers in South America.
What is the Biosphere Reserve program? Answer: The Biosphere Reserve program is a United Nations Educational, Scientific, and Cultural Organization (UNESCO) initiative aimed at conserving biodiversity and promoting sustainable development in designated areas around the world.
Which is the largest Biosphere Reserve in India? Answer: The Great Rann of Kutch Biosphere Reserve is the largest Biosphere Reserve in India, covering an area of over 12,000 square kilometers in the state of Gujarat.
Quiz on Biodiversity:Round 6: Biodiversity and Climate Change
What is the impact of climate change on biodiversity? Answer: Climate change is causing significant impacts on biodiversity, including changes in species distributions, shifts in phenology, alterations in food webs, and increases in extinction rates.
What is the Paris Agreement? Answer: The Paris Agreement is an international treaty adopted by the United Nations in 2015, aimed at reducing greenhouse gas emissions and limiting global warming to well below 2 degrees Celsius above pre-industrial levels.
What is the Intergovernmental Panel on Climate Change (IPCC)? Answer: The IPCC is a scientific body established by the United Nations in 1988 to provide objective scientific information on climate change, its impacts, and possible response strategies.
How does deforestation contribute to climate change? Answer: Deforestation releases large amounts of carbon dioxide into the atmosphere, which contributes to climate change. Trees absorb carbon dioxide during photosynthesis, so their removal from the ecosystem increases the amount of carbon dioxide in the atmosphere.
Which region of the world is most vulnerable to the impacts of climate change? Answer: Small Island Developing States (SIDS) are most vulnerable to the impacts of climate change, including rising sea levels, more frequent extreme weather events, and increased ocean acidification.
What is the impact of ocean acidification on marine biodiversity? Answer: Ocean acidification is causing significant impacts on marine biodiversity, including reduced growth and survival of calcifying organisms like coral reefs and shellfish.
What is the role of biodiversity in climate change mitigation? Answer: Biodiversity plays a crucial role in climate change mitigation by sequestering carbon, regulating local and global climate patterns, and providing critical ecosystem services that support human well-being.
What is the role of indigenous peoples in biodiversity conservation and climate change mitigation? Answer: Indigenous peoples have traditional knowledge and practices that contribute to biodiversity conservation and climate change mitigation, including sustainable land use, natural resource management, and community-based conservation.
What is the impact of climate change on migratory species? Answer: Climate change is impacting migratory species by altering their breeding and migration patterns, disrupting food availability, and causing changes in temperature and precipitation patterns.
What is the importance of marine biodiversity in climate change mitigation? Answer: Marine biodiversity is crucial for climate change mitigation, as marine ecosystems sequester large amounts of carbon dioxide and provide a range of other ecosystem services that support human well-being.
What is the One Health approach? Answer: The One Health approach is an interdisciplinary approach that recognizes the interconnectedness of human, animal, and environmental health and seeks to promote their holistic management.
What is zoonotic disease? Answer: Zoonotic diseases are diseases that can be transmitted between animals and humans, either directly or indirectly through vectors like mosquitoes or ticks.
What is the impact of deforestation on human health? Answer: Deforestation is impacting human health by promoting the emergence of zoonotic diseases, reducing access to clean water, and exacerbating air pollution.
What is the impact of climate change on human health? Answer: Climate change is impacting human health by increasing the incidence of infectious diseases, worsening air quality, and increasing the frequency and intensity of extreme weather events.
What is traditional medicine? Answer: Traditional medicine is a system of healthcare that is based on the use of medicinal plants, animals, and minerals, and has been developed over centuries by different cultures around the world.
What is the importance of biodiversity in traditional medicine? Answer: Biodiversity is crucial for traditional medicine, as many medicinal plants and animals are found only in specific ecosystems and are important sources of therapeutic compounds.
What is the impact of overexploitation on traditional medicine? Answer: Overexploitation of medicinal plants and animals can lead to their extinction, thereby reducing the availability of important medicinal resources and undermining the sustainability of traditional medicine.
What is the role of indigenous knowledge in traditional medicine? Answer: Indigenous knowledge systems play a crucial role in traditional medicine, as they provide a deep understanding of the complex relationships between human health, ecological processes, and cultural practices. Indigenous knowledge systems are often based on centuries of observation, experimentation, and innovation, and can offer valuable insights into the medicinal properties and uses of local plant and animal species.
What is the relationship between biodiversity loss and emerging infectious diseases? Answer: Biodiversity loss can promote the emergence of infectious diseases by reducing the abundance and diversity of natural enemies of pathogens and increasing the contact between humans, domesticated animals, and wildlife.
What is the impact of pollution on human health? Answer: Pollution can impact human health by causing respiratory and cardiovascular diseases, cancer, and neurological disorders, among other health problems.
Quiz on Biodiversity:Round 8: Biodiversity and Conservation
What is the Convention on Biological Diversity (CBD)? Answer: The CBD is an international treaty that was established in 1992 to promote the conservation and sustainable use of biodiversity and to ensure its equitable sharing of benefits.
What is the role of protected areas in biodiversity conservation? Answer: Protected areas play a crucial role in biodiversity conservation by providing habitats for wildlife, preserving ecosystem services, and supporting cultural and recreational activities.
What is the impact of invasive species on biodiversity? Answer: Invasive species can impact biodiversity by outcompeting native species for resources, altering food webs, and spreading diseases and parasites.
What is the role of habitat restoration in biodiversity conservation? Answer: Habitat restoration can play a crucial role in biodiversity conservation by improving the quality and connectivity of habitats, enhancing ecosystem services, and supporting the recovery of threatened and endangered species.
What is the impact of wildlife trade on biodiversity? Answer: Wildlife trade can impact biodiversity by driving the overexploitation and extinction of species, promoting the spread of diseases and invasive species, and undermining local livelihoods and cultures.
What is the role of community-based conservation in biodiversity conservation? Answer: Community-based conservation involves engaging local communities in the conservation and sustainable use of biodiversity, and can play a crucial role in supporting sustainable livelihoods, promoting cultural diversity, and empowering marginalized groups.
What is the impact of climate change on biodiversity conservation? Answer: Climate change is impacting biodiversity conservation by altering the distribution and abundance of species, promoting the spread of invasive species and diseases, and reducing the effectiveness of conservation strategies.
What is the role of genetic diversity in biodiversity conservation? Answer: Genetic diversity is crucial for biodiversity conservation, as it provides the basis for evolutionary adaptation, the maintenance of ecosystem functions, and the development of new technologies and medicines.
What is the impact of habitat fragmentation on biodiversity? Answer: Habitat fragmentation can impact biodiversity by reducing habitat quality and connectivity, promoting inbreeding and genetic drift, and increasing the risk of extinction for species that depend on large, intact habitats.
What is the role of international cooperation in biodiversity conservation? Answer: International cooperation is crucial for biodiversity conservation, as many species and ecosystems cross national borders and require coordinated conservation efforts, research, and policy development. The CBD and other international agreements provide a framework for such cooperation.
Quiz on Biodiversity: Round 9: Biodiversity and Agriculture
What is agro-biodiversity? Answer: Agro-biodiversity refers to the diversity of plant and animal genetic resources that are used in agriculture and food production.
What is the impact of monoculture on biodiversity? Answer: Monoculture can impact biodiversity by reducing the diversity of crop species and associated wildlife, promoting the spread of pests and diseases, and undermining soil health and ecosystem services.
What is sustainable agriculture? Answer: Sustainable agriculture is an approach to farming that seeks to produce food and fiber while minimizing negative impacts on the environment, promoting social equity, and enhancing economic viability.
What is the role of agroforestry in biodiversity conservation? Answer: Agroforestry involves integrating trees and other woody plants into agricultural systems, and can play a crucial role in biodiversity conservation by providing habitats for wildlife, enhancing soil fertility and water conservation, and supporting the livelihoods of local communities.
What is the impact of pesticides on biodiversity? Answer: Pesticides can impact biodiversity by harming non-target species, promoting the emergence of pesticide-resistant pests and diseases, and reducing the abundance and diversity of beneficial insects and soil organisms.
What is the role of organic farming in biodiversity conservation? Answer: Organic farming is a farming system that avoids the use of synthetic fertilizers and pesticides, and can play a crucial role in biodiversity conservation by promoting soil health, supporting pollinators and other beneficial insects, and reducing pollution and greenhouse gas emissions.
What is the impact of genetic modification on biodiversity? Answer: Genetic modification can impact biodiversity by altering the genetic diversity of crop and livestock species, promoting the spread of transgenes and associated traits, and impacting the evolutionary adaptation and resilience of ecosystems.
What is the role of traditional agriculture in biodiversity conservation? Answer: Traditional agriculture involves using local knowledge and practices to cultivate crops and raise livestock, and can play a crucial role in biodiversity conservation by preserving crop and animal genetic diversity, promoting soil health and water conservation, and supporting cultural diversity and livelihoods.
What is the impact of industrial agriculture on biodiversity? Answer: Industrial agriculture can impact biodiversity by promoting monoculture, using large amounts of pesticides and synthetic fertilizers, and reducing the diversity of crop and livestock genetic resources.
What is the role of agroecology in biodiversity conservation? Answer: Agroecology is an approach to farming that seeks to promote biodiversity, improve soil health, and support the livelihoods of small-scale farmers, and can play a crucial role in biodiversity conservation by integrating ecological principles and local knowledge into farming practices.
Quiz on Biodiversity: Round 10: Biodiversity and Society
What is the role of education in biodiversity conservation? Answer: Education can play a crucial role in biodiversity conservation by raising awareness and understanding of the importance of biodiversity, promoting sustainable lifestyles and consumption patterns, and supporting the development of skills and knowledge needed for conservation and sustainable use.
What is the impact of cultural diversity on biodiversity? Answer: Cultural diversity can impact biodiversity by promoting traditional knowledge and practices that support the conservation and sustainable use of biodiversity, and by supporting diverse values and perspectives on the importance of biodiversity.
What is the role of public participation in biodiversity conservation? Answer: Public participation involves engaging stakeholders and local communities in the conservation and sustainable use of biodiversity, and can play a crucial role in supporting sustainable livelihoods, promoting social equity, and enhancing the effectiveness and legitimacy of conservation initiatives.
What is the impact of tourism on biodiversity? Answer: Tourism can impact biodiversity by promoting the overexploitation of natural resources, promoting the spread of invasive species and diseases, and undermining local livelihoods and cultures.
What is the role of traditional knowledge in biodiversity conservation? Answer: Traditional knowledge involves the knowledge, practices, and beliefs of indigenous and local communities, and can play a crucial role in biodiversity conservation by promoting sustainable resource use, preserving genetic diversity, and supporting cultural diversity and resilience.
What is the impact of urbanization on biodiversity? Answer: Urbanization can impact biodiversity by reducing habitat quality and connectivity, promoting the spread of invasive species and diseases, and increasing the demand for natural resources and energy.
What is the role of corporate social responsibility in biodiversity conservation? Answer: Corporate social responsibility involves the voluntary actions of companies to promote social and environmental sustainability, and can play a crucial role in biodiversity conservation by supporting sustainable supply chains, promoting conservation initiatives, and engaging with stakeholders and local communities.
What is the impact of international trade on biodiversity? Answer: International trade can impact biodiversity by promoting the overexploitation and illegal trade of wildlife and plant species, promoting the spread of invasive species and diseases, and undermining local livelihoods and cultures.
What is the role of policy and governance in biodiversity conservation? Answer: Policy and governance frameworks can play a crucial role in biodiversity conservation by providing incentives and regulations to promote sustainable use and conservation, supporting the participation and empowerment of local communities and stakeholders, and promoting international cooperation and collaboration on biodiversity issues.
What is the impact of climate change on biodiversity? Answer: Climate change can impact biodiversity by altering the timing of seasonal events, promoting the spread of invasive species and diseases, and changing the distribution and abundance of species and ecosystems. It can also impact the availability and quality of freshwater resources, and undermine the capacity of ecosystems to provide crucial services such as carbon sequestration and climate regulation.
The contribution of Birbal Sahni to the field of paleobotany is widely recognized and highly regarded.
Birbal Sahni’s contribution to science and research continues to inspire new discoveries in the field of paleontology.
The contribution of Birbal Sahni to our understanding of ancient plant life is invaluable and serves as a foundation for modern paleobotany.
Birbal Sahni’s significant contribution to paleobotany and the scientific community is a testament to his passion and dedication.
The contribution of Birbal Sahni to the field of paleobotany underscores the importance of curiosity, inquiry, and exploration in scientific research.
Birbal Sahni (1891-1949) was an Indian paleobotanist who made significant contributions to the study of plant fossils and their role in understanding the evolution of plant life on Earth. His pioneering work in the field of paleobotany has had a lasting impact on the scientific community and continues to inspire researchers today.
One of Sahni’s major contributions was his study of the Gondwana flora, a collection of plant fossils from the supercontinent of Gondwana that existed during the late Paleozoic and early Mesozoic eras. Sahni’s research on these fossils provided important insights into the evolution of plant life during this period, including the emergence of gymnosperms and the development of the seed habit.
Sahni was also known for his work on the distribution of plant fossils, which he used to map the ancient vegetation of India and other parts of the world. This work helped establish the field of paleobiogeography, which seeks to understand the distribution of organisms in the past and how it has changed over time.
In addition to his scientific contributions, Sahni was also an advocate for the preservation of India’s natural heritage. He played a key role in the establishment of the Botanical Survey of India and the Indian National Science Academy, which continue to promote the study and conservation of India’s biodiversity today.
Sahni’s legacy continues to inspire researchers in India and around the world. The Birbal Sahni Institute of Palaeobotany, which was founded in his honor in 1946, remains a leading center for the study of paleobotany and continues to conduct cutting-edge research on the evolution of plant life on Earth.
Overall, Birbal Sahni’s contributions to the field of paleobotany have had a significant impact on our understanding of the history of life on Earth. His pioneering work in the study of plant fossils has helped shape the field of paleontology and continues to inform research on the evolution of plants today. His legacy as a scientist and advocate for conservation continues to inspire new generations of researchers and conservationists around the world.
40 FAQs on Birbal Sahni and Related Fields–Contribution of Birbal Sahni
Who was Birbal Sahni? Birbal Sahni was an Indian paleobotanist and geologist.
When was Birbal Sahni born? Birbal Sahni was born on November 14, 1891.
Where was Birbal Sahni born? Birbal Sahni was born in Bhera, Punjab (now in Pakistan).
What was Birbal Sahni’s educational background? Birbal Sahni obtained his Bachelor’s degree in 1911 and his Master’s degree in Botany in 1913 from Punjab University.
Where did Birbal Sahni work? Birbal Sahni worked at several universities and research institutions in India, including Punjab University, Banaras Hindu University, and the Indian Institute of Science.
What is Birbal Sahni known for? Birbal Sahni is known for his pioneering work in the field of paleobotany, particularly his studies of the Gondwana flora and the distribution of plant fossils.
What is paleobotany? Paleobotany is the study of fossil plants and their relationships to modern plants.
What is the Gondwana flora? The Gondwana flora is a collection of plant fossils from the supercontinent of Gondwana that existed during the late Paleozoic and early Mesozoic eras.
What is paleobiogeography? Paleobiogeography is the study of the distribution of organisms in the past and how it has changed over time.
What is the Botanical Survey of India? The Botanical Survey of India is a research institution that promotes the study and conservation of India’s biodiversity.
What is the Indian National Science Academy? The Indian National Science Academy is an organization that promotes scientific research and education in India.
What are gymnosperms? Gymnosperms are a group of seed-producing plants that include conifers, cycads, and ginkgos.
What is the seed habit? The seed habit refers to the evolution of plants that produce seeds, which contain embryos and nutrients that enable them to survive and grow into new plants.
What is a paleontologist? A paleontologist is a scientist who studies fossils to understand the history of life on Earth.
What is a geologist? A geologist is a scientist who studies the Earth and its processes, including the formation of rocks and minerals, the movement of tectonic plates, and the evolution of life.
What is a scientist? A scientist is a person who uses the scientific method to explore the natural world and to test hypotheses and theories.
What is the scientific method? The scientific method is a process of inquiry that involves observation, hypothesis formation, experimentation, and analysis of data.
What is a hypothesis? A hypothesis is a testable explanation for a phenomenon or observation.
What is an experiment? An experiment is a controlled test of a hypothesis or scientific theory.
What is data analysis? Data analysis is the process of organizing, interpreting, and drawing conclusions from data.
What is a research institution? A research institution is an organization that conducts scientific research and promotes the advancement of knowledge in a particular field.
What is an advocate? An advocate is a person who supports or speaks out for a particular cause or idea.
What is conservation? Conservation is the preservation and protection of natural resources and ecosystems.
What is biodiversity? Biodiversity refers to the variety of plant and animal species that exist in a particular ecosystem.
What is a center of excellence? A center of excellence is an organization or institution that is recognized for its expertise and leadership in a particular field
What is a fellowship? A fellowship is a financial award that supports an individual’s research or study in a particular field.
What is a symposium? A symposium is a conference or meeting in which experts present and discuss their work in a particular field.
What is the International Geological Congress? The International Geological Congress is a global forum for the exchange of scientific knowledge and ideas in the field of geology.
What is the Geological Society of India? The Geological Society of India is a professional organization that promotes the study and practice of geology in India.
What is the National Science Foundation? The National Science Foundation is a government agency in the United States that supports scientific research and education in a variety of fields.
What is the significance of Birbal Sahni’s work in paleobotany? Birbal Sahni’s work in paleobotany helped to establish the scientific study of fossil plants and contributed to our understanding of the evolution and distribution of plant life on Earth.
What is the significance of Birbal Sahni’s work in geology? Birbal Sahni’s work in geology contributed to our understanding of the formation and structure of the Earth’s crust and the history of the planet.
What were some of Birbal Sahni’s major discoveries? Birbal Sahni discovered several new species of plants and contributed to our understanding of the evolution of gymnosperms and the distribution of plant fossils.
What is the Birbal Sahni Institute of Palaeobotany? The Birbal Sahni Institute of Palaeobotany is a research institution in Lucknow, India that focuses on the study of fossil plants and their relationships to modern plant life.
What is the Birbal Sahni Medal? The Birbal Sahni Medal is a prestigious award presented by the Indian Botanical Society for outstanding contributions to the study of botany.
What is the Birbal Sahni Lecture? The Birbal Sahni Lecture is an annual lecture series organized by the Birbal Sahni Institute of Palaeobotany in honor of Birbal Sahni’s contributions to science.
What is the importance of paleobotany in modern science? Paleobotany is important in modern science because it provides insights into the evolution and distribution of plant life on Earth, which has implications for our understanding of the Earth’s climate and ecosystems.
What is the legacy of Birbal Sahni? Birbal Sahni’s legacy includes his contributions to the fields of paleobotany and geology, as well as his advocacy for scientific research and education in India.
What is the impact of Birbal Sahni’s work on Indian science? Birbal Sahni’s work helped to establish India as a center of excellence in the fields of paleobotany and geology, and his advocacy for scientific research and education has had a lasting impact on Indian science.
How can we learn more about Birbal Sahni and his contributions to science? Interested individuals can learn more about Birbal Sahni and his contributions to science by reading his published works, visiting the Birbal Sahni Institute of Palaeobotany, and attending lectures and symposia in the fields of paleobotany and geology.
1-The organisms which are minute and can not be seen with our naked eye and can be seen only with microscope are called micro-organisms. Viruses,bacteria, algae, fungi and protozoa are some of the examples of micro-organisms.
2-Microorganisms can be found in air, water, soil and all living organisms.
3-We can observe the following type of micro-organisms in pond water.
1- Algae : Chlamydomovas, Spirogyra, Ordogonium,Spiruliva etc.
4-Microbiology as a Science was born in 1674 when Anton Van Leeuwenhoek peered at a drop of lake water through a glass lens that he had carefully ground..
5-Leeuwenhoek built a single lens powerful microscope , which could magnify the object 300 times.
6-Diseases like polio, swine flu, conjunctivitis,small pox,chickenpox and Aids are caused by viruses.
7-Some micro-organisms are present inside the bodies of animals and plants.
8-Some micro-organisms grow on other organisms(parasites) and some may exist independendently.
9-Diseases like Malaria, Amoebiasis are caused by Protozoa.
10-The study of micro-organisms is called Microbiology.
11-Some of the micro-organisms are autotrophs while some are heterotrophs.
12-Viruses are special type of micro-organisms , which lie between living and non-living organisms.They can reproduce only in host living cells.
13- All micro-organisms are usually single celled organisms.
14-Cell of the micro-organisms contain a small amount of protoplasm and genetic material.
15-Based on the presence and absense of nucleus, micro-organisms are classified into two types.
1- The structural and functional unit of the living body is called Cell. All living organisms are made of cells.
2-The history of cell science begins with the description of a thin section of a cork by Robert Hooke.
3-Cells were first observed by Robert Hooke in 1665.
4-Antonie Van Leeuwenhoek was the first to see lining bodies under microscope which he had constructed himself described the existence of unicellular organisms.
5-The cell is the fundamental unit of single cellular and multicellular organisma.
6-Cell exhibits a variety of shapes,sizes and number.
7-The cell has three main parts-cell membrane, cytoplasm and nucleus.
8-Robert Brown discovered nucleus in orchid leaf.
9-Single celled animals are called unicellular organisms.
10-Cell wall gives strength and rigidity to plants.
11-Plant cells differ from those of animals in having an additional layer around the cell membrane termed cell wall.
12-Cell wall is the layer present over the cell membrane.
13-The boundary of a cell is called cell membrane.
14-The jelly like substance between the nucleus and the cell membrane is called cytoplasm.
15-Nucleus is a prominent spherical body present in the cells ,controlling centre of all the activities in the cell.
16-Organelles are tiny structure present in the cytoplasm of cells,perform important life functions.
17-Group of tissues are called organs.
18-Pseudopodia is a locomotory organ in Amoeba.
19-Colouring the sample is called staining.
20-Magnify the size of an organism or cell or tissue is called magnification.
21-Concentrating o9n particular material is called focussing.
22- Organisation of cell
Cell
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Tissue
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Organ
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Organ System
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Organism
23-Examples of unicellular organisms are Amoeba,Bacteria, Chlamydomonas.
24- Most of the plants and animals are multicellular organisms.
25- The largest cell is the egg of Ostrich.
25-Compound microscope was made in the year 1595.
26-In leaves exchange of gases takes place through stomata.
