NEET Biology Questions

NEET biology questions are crucial for students aiming to excel in various competitive exams. These questions cover diverse biological concepts, helping students test their knowledge.

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NEET Biology Questions MCQs

1. Which of the following is a prokaryotic cell?
   a) Amoeba
   b) Paramecium
   c) Bacteria
   d) Fungi
2. The powerhouse of the cell is known as:
   a) Ribosome
   b) Mitochondria
   c) Nucleus
   d) Chloroplast
3. Which of the following is a primary consumer in the food chain?
   a) Grass
   b) Grasshopper
   c) Snake
   d) Eagle
4. In which phase of mitosis do chromosomes align at the center of the cell?
   a) Prophase
   b) Metaphase
   c) Anaphase
   d) Telophase
5. What is the chemical formula of glucose?
   a) C6H12O6
   b) C12H22O11
   c) H2O
   d) CO2
6. Which enzyme is responsible for the breakdown of fats?
   a) Amylase
   b) Lipase
   c) Protease
   d) Nuclease
7. Which blood group is called the universal donor?
   a) A
   b) B
   c) AB
   d) O
8. The primary function of xylem in plants is to:
   a) Transport food
   b) Transport water
   c) Provide support
   d) Perform photosynthesis
9. Which organelle is responsible for protein synthesis?
   a) Ribosome
   b) Golgi body
   c) Endoplasmic reticulum
   d) Lysosome
10. The contractile unit of muscle is called:
    a) Sarcomere
    b) Myofibril
    c) Actin
    d) Myosin
11. DNA replication occurs during which phase of the cell cycle?
    a) G1 phase
    b) S phase
    c) G2 phase
    d) M phase
12. What is the pH of blood in a healthy human?
    a) 7.0
    b) 7.4
    c) 6.8
    d) 8.0
13. The human kidney is responsible for:
    a) Digesting food
    b) Filtering blood
    c) Producing bile
    d) Storing nutrients
14. Photosynthesis occurs in which part of the plant cell?
    a) Mitochondria
    b) Nucleus
    c) Chloroplast
    d) Endoplasmic reticulum
15. Which of the following is an example of an incomplete flower?
    a) Rose
    b) Tulip
    c) Hibiscus
    d) Pumpkin
16. The genetic material in retroviruses is:
    a) DNA
    b) RNA
    c) Protein
    d) Lipid
17. Which vitamin is necessary for blood clotting?
    a) Vitamin A
    b) Vitamin B12
    c) Vitamin C
    d) Vitamin K
18. Which process is used by plants to convert light energy into chemical energy?
    a) Respiration
    b) Photosynthesis
    c) Fermentation
    d) Digestion
19. The basic unit of heredity is:
    a) Cell
    b) DNA
    c) Gene
    d) Chromosome
20. Which hormone regulates the sleep-wake cycle in humans?
    a) Insulin
    b) Melatonin
    c) Adrenaline
    d) Cortisol
21. What type of immunity is provided by a vaccine?
    a) Passive immunity
    b) Active immunity
    c) Innate immunity
    d) Adaptive immunity
22. Hemoglobin is responsible for carrying:
    a) Carbon dioxide
    b) Oxygen
    c) Nitrogen
    d) Hydrogen
23. Which plant tissue is responsible for transporting food?
    a) Xylem
    b) Phloem
    c) Cortex
    d) Epidermis
24. The total number of bones in an adult human body is:
    a) 206
    b) 196
    c) 306
    d) 256
25. Who is known as the father of modern genetics?
    a) Darwin
    b) Mendel
    c) Watson
    d) Crick
26. In human beings, the process of fertilization takes place in:
    a) Uterus
    b) Fallopian tube
    c) Ovary
    d) Vagina
27. What is the natural habitat of polar bears?
    a) Arctic
    b) Antarctic
    c) Tropical
    d) Temperate
28. Which of the following microorganisms is used in the production of alcohol?
    a) Fungi
    b) Bacteria
    c) Virus
    d) Algae
29. The outermost layer of the skin is called:
    a) Epidermis
    b) Dermis
    c) Hypodermis
    d) Subcutaneous
30. Which of the following organisms does not have a nervous system?
    a) Sponge
    b) Hydra
    c) Snail
    d) Earthworm
31. The fluid part of the blood is called:
    a) Plasma
    b) Platelet
    c) Serum
    d) Hemoglobin
32. In photosynthesis, the oxygen released comes from:
    a) Carbon dioxide
    b) Water
    c) Glucose
    d) Chlorophyll
33. The hormone that regulates blood sugar levels is:
    a) Thyroxine
    b) Insulin
    c) Glucagon
    d) Cortisol
34. In meiosis, the number of chromosomes in the daughter cells is:
    a) Double
    b) Half
    c) Same
    d) Triple
35. Which organism is considered a producer in an ecosystem?
    a) Tiger
    b) Grass
    c) Frog
    d) Bacteria
36. What is the function of hemoglobin in the blood?
    a) Transport of nutrients
    b) Transport of gases
    c) Regulation of temperature
    d) Protection from infections
37. Which organ in the human body secretes bile?
    a) Stomach
    b) Liver
    c) Pancreas
    d) Gallbladder
38. During anaerobic respiration, which substance is produced in muscles?
    a) Lactic acid
    b) Alcohol
    c) Acetyl-CoA
    d) Glucose
39. The smallest unit of life is:
    a) Organ
    b) Tissue
    c) Cell
    d) Molecule
40. The process by which plants lose water in the form of vapor is called:
    a) Photosynthesis
    b) Transpiration
    c) Respiration
    d) Absorption
41. In which part of the brain is the respiratory center located?
    a) Cerebrum
    b) Cerebellum
    c) Medulla oblongata
    d) Hypothalamus
42. The color of a person’s eyes is determined by:
    a) Cornea
    b) Retina
    c) Iris
    d) Pupil
43. Which enzyme is found in saliva and helps in the digestion of starch?
    a) Amylase
    b) Lipase
    c) Protease
    d) Lactase
44. What is the normal body temperature of a human being?
    a) 35°C
    b) 37°C
    c) 39°C
    d) 40°C
45. Which of the following diseases is caused by bacteria?
    a) Malaria
    b) Tuberculosis
    c) HIV/AIDS
    d) Dengue
46. In which process do plants convert light energy into chemical energy?
    a) Photosynthesis
    b) Respiration
    c) Fermentation
    d) Transpiration
47. The functional unit of the kidney is:
    a) Neuron
    b) Alveoli
    c) Nephron
    d) Glomerulus
48. Which of the following elements is essential for the production of thyroid hormones?
    a) Iron
    b) Iodine
    c) Calcium
    d) Magnesium
49. The enzyme pepsin breaks down:
    a) Carbohydrates
    b) Proteins
    c) Fats
    d) Nucleic acids
50. The tube that connects the mouth to the stomach is called:
    a) Trachea
    b) Esophagus
    c) Pharynx
    d) Larynx

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NEET Biology Questions With Answers

1. c
2. b
3. b
4. b
5. a
6. b
7. d
8. b
9. a
10. a
11. b
12. b
13. b
14. c
15. d
16. b
17. d
18. b
19. c
20. b
21. b
22. b
23. b
24. a
25. b
26. b
27. a
28. a
29. a
30. a
31. a
32. b
33. b
34. b
35. b
36. b
37. b
38. a
39. c
40. b
41. c
42. c
43. a
44. b
45. b
46. a
47. c
48. b
49. b
50. b

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Key Takeaways

1. Biology concepts are integral to competitive exams like NEET.
2. Focus on understanding the functions of cells and organelles.
3. Photosynthesis and respiration are fundamental processes.
4. Human body systems, such as the nervous and excretory systems, are frequently tested.
5. Enzymes and hormones play key roles in physiological processes.
6. Genetic material and inheritance form crucial parts of biology questions.
7. Immunity and vaccination are trending topics.
8. Knowledge of ecosystems and food chains is essential.
9. Different types of cells and tissues are often tested.
10. Basic knowledge of human anatomy and physiology helps in acing NEET Biology.

Also Read: NEET Chemistry Questions