Biology Quiz Questions and Answers for Class 10 with Answers

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Biology Quiz Questions and Answers for Class 10 with Answers

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Biology Quiz Questions and Answers for Class 10 with Answers

What is the basic unit of life? Answer: Cell. Explanation: A cell is the basic unit of life, which is responsible for carrying out all the processes necessary for an organism to function.
What is the process by which plants make their own food? Answer: Photosynthesis. Explanation: Photosynthesis is the process by which plants make their own food using sunlight, carbon dioxide, and water.
Which organelle is responsible for producing energy in a cell? Answer: Mitochondria. Explanation: Mitochondria are organelles that are responsible for producing energy in a cell through cellular respiration.
What is the process by which an organism maintains a stable internal environment? Answer: Homeostasis. Explanation: Homeostasis is the process by which an organism maintains a stable internal environment despite changes in the external environment.
Which type of cell division results in the formation of gametes? Answer: Meiosis. Explanation: Meiosis is the type of cell division that results in the formation of gametes, which are reproductive cells such as sperm and egg cells.
Which type of tissue connects bones to other bones? Answer: Ligament. Explanation: Ligaments are types of connective tissue that connect bones to other bones in the body.
Which type of tissue connects muscles to bones? Answer: Tendon. Explanation: Tendons are types of connective tissue that connect muscles to bones in the body.
What is the process by which an egg and a sperm cell fuse to form a zygote? Answer: Fertilization. Explanation: Fertilization is the process by which an egg and a sperm cell fuse to form a zygote, which develops into an embryo.
Which organ in the human body produces insulin? Answer: Pancreas. Explanation: The pancreas is an organ in the human body that produces insulin, which is necessary for the regulation of blood sugar levels.
What is the name of the process by which water moves from an area of high concentration to an area of low concentration? Answer: Osmosis. Explanation: Osmosis is the process by which water moves from an area of high concentration to an area of low concentration across a semi-permeable membrane.
Which type of joint allows for the greatest range of motion? Answer: Ball-and-socket joint. Explanation: Ball-and-socket joints allow for the greatest range of motion among all types of joints in the body.
What is the name of the process by which the body breaks down food into smaller molecules? Answer: Digestion. Explanation: Digestion is the process by which the body breaks down food into smaller molecules that can be absorbed and used for energy.
Which part of a plant is responsible for absorbing water and nutrients from the soil? Answer: Root. Explanation: The root is the part of a plant responsible for absorbing water and nutrients from the soil.
What is the name of the process by which oxygen is transported from the lungs to the body’s tissues? Answer: Circulation. Explanation: Circulation is the process by which oxygen is transported from the lungs to the body’s tissues via the bloodstream.
Which type of tissue covers the surfaces of the body and lines the internal organs? Answer: Epithelial tissue. Explanation: Epithelial tissue covers the surfaces of the body and lines the internal organs, serving a protective and absorptive function.
What is the name of the process by which a plant releases water vapor from its leaves? Answer: Transpiration. Explanation: Transpiration is the process by which a plant releases water vapor from its leaves through tiny pores called stomata.
Which type of cell is responsible for transmitting electrical signals in the nervous system? Answer: Neuron. Explanation: Neurons are specialized cells in the nervous system that transmit electrical signals between different parts of the body.

What is the name of the pigment responsible for the color of human skin? Answer: Melanin. Explanation: Melanin is a pigment that is responsible for the color of human skin, hair, and eyes.
Which type of blood vessel carries oxygenated blood away from the heart? Answer: Artery. Explanation: Arteries are blood vessels that carry oxygenated blood away from the heart to the rest of the body.
What is the name of the hormone that regulates sleep-wake cycles in humans? Answer: Melatonin. Explanation: Melatonin is a hormone that is responsible for regulating sleep-wake cycles in humans.
Which part of the human brain is responsible for processing visual information? Answer: Occipital lobe. Explanation: The occipital lobe is the part of the human brain that is responsible for processing visual information.
What is the name of the hormone responsible for stimulating uterine contractions during childbirth? Answer: Oxytocin. Explanation: Oxytocin is a hormone that is responsible for stimulating uterine contractions during childbirth and also plays a role in social bonding.
Which type of cell is responsible for producing antibodies in the human body? Answer: B cell. Explanation: B cells are a type of white blood cell that are responsible for producing antibodies, which help to fight off infections.
What is the name of the enzyme responsible for breaking down carbohydrates in the mouth? Answer: Amylase. Explanation: Amylase is an enzyme that is produced in the salivary glands and is responsible for breaking down carbohydrates in the mouth.
Which part of the human eye is responsible for focusing light onto the retina? Answer: Lens. Explanation: The lens is a transparent structure in the human eye that is responsible for focusing light onto the retina.
What is the name of the hormone responsible for regulating calcium levels in the body? Answer: Parathyroid hormone. Explanation: Parathyroid hormone is a hormone that is responsible for regulating calcium levels in the body.
Which type of muscle is responsible for involuntary contractions in the body? Answer: Smooth muscle. Explanation: Smooth muscle is a type of muscle that is responsible for involuntary contractions in the body, such as those in the digestive system.
What is the name of the process by which the body produces new red blood cells? Answer: Erythropoiesis. Explanation: Erythropoiesis is the process by which the body produces new red blood cells.
Which part of the human brain is responsible for regulating body temperature? Answer: Hypothalamus. Explanation: The hypothalamus is a part of the human brain that is responsible for regulating body temperature, among other functions.
What is the name of the process by which DNA is copied during cell division? Answer: Replication. Explanation: Replication is the process by which DNA is copied during cell division, ensuring that each new cell receives a complete copy of the genetic information.

One-liner questions with answers on nutrition in organisms:

What is the process by which plants make their own food? Answer: Photosynthesis.
What is the main nutrient required by the human body for growth and repair? Answer: Protein.
What is the substance that helps break down food in the stomach? Answer: Gastric acid.
What is the primary source of energy for the body? Answer: Carbohydrates.
What are the essential nutrients that the body needs in small amounts for proper functioning? Answer: Vitamins and minerals.
What is the process of breaking down food into smaller molecules for absorption? Answer: Digestion.
What is the term for organisms that obtain nutrients by consuming other organisms? Answer: Heterotrophs.
What is the nutrient that is necessary for healthy bones and teeth? Answer: Calcium.
What is the process of converting food into usable energy called? Answer: Metabolism.
What is the type of nutrient that provides the highest number of calories per gram? Answer: Fats (lipids).
What is the nutrient that is crucial for proper brain function? Answer: Omega-3 fatty acids.
What is the process of removing waste materials from the body called? Answer: Excretion.
What is the nutrient that helps in the formation and repair of body tissues? Answer: Protein.
What is the term for organisms that can produce their own food through photosynthesis? Answer: Autotrophs.
What is the nutrient that is essential for the transport of oxygen in the body? Answer: Iron.