NEET BIOLOGY MOCK TEST 2024
TEST ID- 310
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1. Which organelle is responsible for the synthesis of proteins in eukaryotic cells?
a) Golgi apparatus
b) Endoplasmic reticulum
c) Mitochondria
d) Lysosomes
2. In humans, the ABO blood group system is determined by:
a) Presence or absence of antigens on red blood cells
b) Presence or absence of antibodies in plasma
c) Types of leukocytes present in the blood
d) Number of platelets in the blood
3. Which of the following is NOT a greenhouse gas?
a) Carbon dioxide
b) Oxygen
c) Methane
d) Nitrous oxide
4. The process by which green plants synthesize their food is called:
a) Respiration
b) Fermentation
c) Photosynthesis
d) Transpiration
5. Which of the following is NOT a function of the human liver?
a) Detoxification of harmful substances
b) Storage of glycogen
c) Regulation of blood glucose levels
d) Production of insulin
6. Which of the following best describes the function of the enzyme amylase?
a) Breaks down proteins into amino acids
b) Breaks down fats into fatty acids and glycerol
c) Breaks down carbohydrates into simple sugars
d) Synthesizes carbohydrates from simple sugars
7. Which of the following is a characteristic feature of prokaryotic cells?
a) Presence of a nucleus
b) Presence of membrane-bound organelles
c) Presence of a cell wall
d) Presence of mitochondria
8. In a food chain, which trophic level represents the primary consumers?
a) First trophic level
b) Second trophic level
c) Third trophic level
d) Fourth trophic level
9. Which of the following is responsible for the transmission of nerve impulses in the nervous system?
a) Hormones
b) Neurotransmitters
c) Enzymes
d) Antigens
10. What is the main function of the stomata in plant leaves?
a) Gas exchange
b) Absorption of water
c) Synthesis of glucose
d) Storage of nutrients
11. Which of the following is responsible for the transmission of genetic information from one generation to the next in eukaryotic cells?
a) Ribosomes
b) Golgi apparatus
c) Nucleus
d) Centrioles
12. Which of the following blood vessels carries oxygen-rich blood from the lungs to the heart?
a) Aorta
b) Pulmonary artery
c) Pulmonary vein
d) Inferior vena cava
13. In which phase of the cell cycle does DNA replication occur?
a) G1 phase
b) S phase
c) G2 phase
d) M phase
14. What is the primary function of white blood cells in the human body?
a) Transport of oxygen
b) Blood clotting
c) Defense against pathogens
d) Regulation of blood pressure
15. Which of the following is a characteristic of an autotrophic organism?
a) Obtains energy from consuming other organisms
b) Cannot synthesize its own food
c) Converts sunlight into chemical energy
d) Depends on organic matter for survival
16. Which of the following is NOT a component of the human excretory system?
a) Kidneys
b) Liver
c) Bladder
d) Urethra
17. What is the function of hemoglobin in red blood cells?
a) Transport of oxygen
b) Destruction of pathogens
c) Regulation of blood sugar levels
d) Synthesis of antibodies
18. Which of the following is an example of a renewable energy resource?
a) Coal
b) Natural gas
c) Solar power
d) Nuclear power
19. What is the role of the enzyme DNA polymerase during DNA replication?
a) Unwinds the DNA double helix
b) Adds nucleotides to the growing DNA strand
c) Repairs damaged DNA strands
d) Transcribes DNA into RNA
20. Which of the following is an example of a parasitic relationship in ecology?
a) Bee pollinating a flower
b) Lion hunting a zebra
c) Tapeworm living in the intestines of a host
d) Clownfish hiding in sea anemones
21. Which of the following is responsible for the production of antibodies in response to pathogens?
a) T cells
b) B cells
c) Platelets
d) Red blood cells
22. What is the function of the chloroplast in plant cells?
a) Synthesis of ATP
b) Storage of genetic information
c) Photosynthesis
d) Regulation of cell shape
23. Which of the following is NOT a function of the skeletal system?
a) Protection of internal organs
b) Production of hormones
c) Support for the body
d) Storage of minerals
24. What is the role of insulin in the human body?
a) Regulation of blood sugar levels
b) Production of bile
c) Breakdown of fats
d) Transport of oxygen
25. Which of the following is NOT a characteristic of a virus?
a) Presence of a cell wall
b) Requires a host cell to replicate
c) Contains genetic material
d) Causes disease in hosts
26. What is the function of the ribosomes in a cell?
a) Synthesis of lipids
b) Synthesis of proteins
c) Production of energy
d) Regulation of cell growth
27. Which of the following is an example of a renewable natural resource?
a) Coal
b) Petroleum
c) Wind
d) Natural gas
28. What is the main function of the nephrons in the kidneys?
a) Regulation of blood pressure
b) Filtration of blood
c) Production of urine
d) Synthesis of hormones
29. Which of the following is responsible for the sense of smell in humans?
a) Taste buds
b) Olfactory receptors
c) Retina
d) Cochlea
30. What is the purpose of meiosis in sexually reproducing organisms?
a) Production of identical offspring
b) Growth and development
c) Introduction of genetic variation
d) Repair of damaged cells
31. Which of the following is NOT a function of the lymphatic system?
a) Absorption of dietary fats
b) Production of red blood cells
c) Maintenance of fluid balance
d) Defence against pathogens
32. What is the role of the enzyme nuclease in metabolism ?
a) Breaks down proteins into amino acids
b) Breaks down carbohydrates into sugars
c) Breaks down fats into fatty acids and glycerol
d) breakdown of polynucleotide chain
33. In which part of the human digestive system does the absorption of most nutrients occur?
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagous
34. Which of the following is NOT a function of the skin?
a) Regulation of body temperature
b) Protection against pathogens
c) Synthesis of vitamin D
d) Production of red blood cells
35. What is the function of the enzyme catalase in cells?
a) Breaks down hydrogen peroxide into water and oxygen
b) Breaks down proteins into amino acids
c) Synthesizes DNA molecules
d) Facilitates cell division
36. Which of the following organisms is classified as a decomposer in an ecosystem?
a) Grass
b) Wolf
c) Fungus
d) Eagle
37. Which of the following is NOT a component of blood?
a) Plasma
b) Platelets
c) Lymphocytes
d) Collagen
38. What is the main function of the cerebellum in the brain?
a) Regulation of body temperature
b) Coordination of movement and balance
c) Processing sensory information
d) Memory storage
39. What is the function of the gallbladder in the human digestive system?
a) Production of bile
b) Storage and concentration of bile
c) Breakdown of lipids
d) Regulation of blood sugar levels
40. Which of the following is NOT a characteristic of enzymes?
a) They are consumed during chemical reactions.
b) They are specific to particular substrates.
c) They are affected by changes in temperature and pH.
d) They increase the activation energy of reactions.
41. What is the primary function of the phloem in plants?
a) Absorption of water and minerals from the soil
b) Transport of sugars produced during photosynthesis
c) Support and structure for the plant
d) Protection against pathogens
42. Which of the following is an example of a covalent bond?
a) Sodium chloride (NaCl)
b) Hydrogen gas (H2)
c) Water (H2O)
d) Magnesium sulphate (MgSO4)
43. What is the role of the thymus gland in the immune system?
a) Production of red blood cells
b) Production of antibodies
c) Maturation of T lymphocytes
d) Regulation of blood glucose levels
44. Which of the following is a characteristic feature of an ecosystem?
a) Presence of only biotic components
b) Stable and unchanging environmental conditions
c) Interactions between living organisms and their physical environment
d) Absence of energy flow within the system
45. What is the function of the ribosomal RNA (rRNA) in protein synthesis?
a) Carries amino acids to the ribosome
b) Provides the template for mRNA synthesis
c) Catalyzes the formation of peptide bonds between amino acids
d) Forms part of the ribosome's structure
46. Which of the following is an example of an innate immune response?
a) Production of antibodies
b) Formation of memory cells
c) Inflammation at the site of infection
d) Delayed response upon secondary exposure to a pathogen
47. What is the function of the lens in the human eye?
a) Regulation of the amount of light entering the eye
b) Detection of light stimuli
c) Conversion of light energy into electrical signals
d) Focusing light onto the retina for image formation
48. Which of the following is NOT a function of the endocrine system?
a) Regulation of metabolism
b) Control of body temperature
c) Regulation of growth and development
d) Maintenance of homeostasis
49. What is the purpose of mitosis in multicellular organisms?
a) Growth and development
b) Introduction of genetic variation
c) Repair of damaged tissues
d) Production of gametes
50. Which of the following is a characteristic of an enzyme-substrate complex?
a) Enzyme undergoes permanent denaturation
b) Enzyme is consumed during the reaction
c) Enzyme remains unchanged after the reaction
d) Enzyme and substrate form covalent bonds
51. Which of the following is a type of drugs ?
a) collagen
b) carotenoid
c) vinblastin
d) concanavalin A
52. Which organelle is responsible for the breakdown of cellular waste and recycling of cellular components?
a) Golgi apparatus
b) Endoplasmic reticulum
c) Lysosome
d) Peroxisome
53. What is the role of the hormone insulin in the regulation of blood glucose levels?
a) Stimulates the breakdown of glycogen into glucose
b) Inhibits the conversion of glucose into glycogen
c) Promotes the uptake of glucose by cells
d) Increases the release of glucose into the bloodstream
54. Which of the following processes is NOT involved in the carbon cycle?
a) Photosynthesis
b) Cellular respiration
c) Decomposition
d) Nitrogen fixation
55. What is the function of the trachea in the respiratory system?
a) Exchange of gases with the bloodstream
b) Transport of oxygen to body tissues
c) Production of mucus for trapping dust and pathogens
d) Passage of air to and from the lungs
56. In which part of a flower are the ovules located?
a) Stamen
b) Sepal
c) Pistil
d) Petal
57. Which of the following is an example of a non-communicable disease?
a) Influenza
b) Tuberculosis
c) Diabetes mellitus
d) Malaria
58. How many codons code for amino acids ?
a) 64
b) 20
c) 61
d) 59
59. What is the function of the semicircular canals in the inner ear?
a) Detection of sound waves
b) Regulation of blood pressure
c) Maintenance of balance and equilibrium
d) Secretion of earwax
60. Which of the following is NOT a characteristic of a prokaryotic cell?
a) Presence of membrane-bound organelles
b) Presence of a cell wall
c) Lack of a nucleus
d) Presence of ribosomes
61. Which of the following is the site of gas exchange in the respiratory system?
a) Trachea
b) Bronchi
c) Alveoli
d) Diaphragm
62. What is the function of the hypothalamus in the brain?
a) Regulation of body temperature and thirst
b) Coordination of voluntary movements
c) Processing of visual information
d) Control of heart rate and respiration
63. The process of translation of the mRNA to proteins begins ?
a) at the time of charging of tRNA
b) when the small subunit encounter to mRNA
c) when the large subunit encounter to mRNA
d) RNA polymerase help in this process
64. What is the role of haemoglobin in red blood cells?
a) Carries carbon dioxide from the tissues to the lungs
b) Transports oxygen from the lungs to body tissues
c) Regulates blood pressure
d) Facilitates blood clotting
65. The separated bands of DNA are cut out from agarose gel and extracted from the gel piece in called ?
a) spooling
b) conning
c) elution
d) amplification
66. What is the function of the pancreas in the digestive system?
a) Production of bile
b) Regulation of blood sugar levels
c) Absorption of nutrients
d) Storage of food
67. Which of the following is NOT a component of the central nervous system?
a) Brain
b) Spinal cord
c) Nerves
d) Sensory receptors
68. What is the purpose of the circulatory system?
a) Regulation of body temperature
b) Transport of nutrients, gases, and wastes
c) Production of hormones
d) Protection against pathogens
69. In mRNA the untranslated region is required for ?
a) transcription
b) start the translation
c) splicing of the hnRNA
d) efficient translation process
70. What is the function of the chlorophyll pigment in plants during photosynthesis?
a) Absorbs light energy
b) Produces carbon dioxide
c) Releases oxygen
d) Transports water from the roots
71. What is the primary function of the Golgi apparatus in eukaryotic cells?
a) Synthesis of lipids
b) Storage of genetic material
c) Modification and packaging of proteins
d) Production of ATP
72. Which of the following is the correct sequence of stages in the cell cycle?
a) G1 phase, S phase, G2 phase, M phase
b) M phase, G1 phase, S phase, G2 phase
c) S phase, G1 phase, M phase, G2 phase
d) G2 phase, M phase, S phase, G1 phase
73. Which of the following organelles is responsible for cellular respiration in eukaryotic cells?
a) Chloroplast
b) Mitochondrion
c) Ribosome
d) Endoplasmic reticulum
74. What is the function of the enzyme lactase in the digestive system?
a) Breaks down proteins into amino acids
b) Breaks down carbohydrates into sugars
c) Breaks down lipids into fatty acids and glycerol
d) Breaks down lactose into glucose and galactose
75. match the item given in column I with those in column II and select the correct option
column I column II
A. proliferative phase i. luteal phase
B. ovulation ii. follicular phase
C. menstruation iii. LH surge
D. secretory phase iv. breakdown of endometrial lining
a) A- iv , B- i , C- ii , D- iii
b) A- ii , B- iii , C- iv , D-i
c) A- iii , B-iv , C- ii , D-i
d) A- ii , B- i , C- iv , D- iii
76. What is the role of the enzyme taq polymerase during DNA replication?
a) it remains active during high temperature
b) Adds nucleotides to the growing DNA strand
c) Repairs damaged DNA strands
d) both (a) and (b)
77. Assertion : In opposite phyllotaxy two leaves are borne of the opposite sides of a single node .
Reason : Opposite phyllotaxy is seen in china rose and mustered .
a) Both assertion and reason are true and reason is correct explanation of assertion .
b) Both assertion and reason are true but reason is not correct explanation of assertion .
c) Assertion is true but reason is false.
d) Both assertion and reason are false .
78. Which of the following is an example of a unicellular organism?
a) Human
b) Mushroom
c) Amoeba
d) Oak tree
79. What is the function of the cilia in the respiratory system?
a) Exchange of gases with the bloodstream
b) Passage of air to and from the lungs
c) Production of mucus for trapping dust and pathogens
d) Transport of oxygen to body tissues
80. Which of the following is NOT a component of the plasma membrane?
a) Phospholipids
b) Proteins
c) Nucleic acids
d) Cholesterol
81. Read the given statement and select the correct option .
Statement 1: Urochordate and cephalochordates are often called protochordate .
Statement 2: Urochordate and cephalochordate are those chordate having vertebra column absent .
a) Both statement 1 and 2 are correct
b) Statement 1 is correct but statement 2 is incorrect
c) Statement 1 is incorrect but statement 2 is correct
d) Both statement 1 and 2 are incorrect
82. What is the function of the enzyme pepsin in the digestive system?
a) Breaks down carbohydrates into sugars
b) Breaks down proteins into amino acids
c) Breaks down fats into fatty acids and glycerol
d) Synthesizes proteins from amino acids
83. Which of the following structures is NOT found in a plant cell?
a) Chloroplast
b) Mitochondrion
c) Centriole
d) Cell wall
84. What is the role of the hormone adrenaline in the human body?
a) Regulation of blood sugar levels
b) Control of heart rate and blood pressure
c) Regulation of body temperature
d) Maintenance of bone density
85. Which of the following is the correct order of the levels of biological organization, from simplest to most complex?
a) Organism, organ system, organ, tissue, cell
b) Cell, tissue, organ, organ system, organism
c) Tissue, organ, cell, organ system, organism
d) Cell, organ system, organ, tissue, organism
86. Assertion : Earthworm are known as 'friends of formers ' .
Reason : Earthworm make burrows in the soil and make the soil porous , which help in respiration and penetration of developing plant roots .
a) Both assertion and reason are true and reason is the correct explanation of assertion
b) Both assertion and reason are true but reason is not the correct explanation of assertion
c) Assertion is true but reason is false
d) Both assertion and reason are false
87. Given below are some respiratory capacities ,volume and respiratory value match them and choose the correct option . Respiratory capacities and volumes value
A- Vital capacity i. 5800 ml B- Tidal volume ii. 1200ml C- Functional residual capacity iii. 4600ml D- Total lung capacity iv. 500 ml E- Residual volume v. 2300 ml
a) A- ii , B- v , C- i , D- iii , E- iv
b) A- iii , B- iv , C- v , D- i , E- ii
c) A- iv , B- i , C- v , D- ii , E- iii
d) A- v , B- iii , C- ii , D- i , E- iv
88. What is the purpose of meiosis in sexually reproducing organisms?
a) Production of gametes
b) Growth and development
c) Repair of damaged tissues
d) Production of identical offspring
89. Assertion : parturition is induced by neural signal in maternal pituitary .
Reason : At the end of gestation period , the maternal pituitary releases prolactin which causes uterine contractions .
a) Both assertion and reason are true and reason is the correct explanation of assertion
b) Both assertion and reason are true but reason is not the correct explanation of assertion
c) Assertion is true but reason is false
d) Both assertion and reason are false
90. What is the function of the thylakoid membrane in chloroplasts?
a) Synthesis of ATP
b) Photosynthesis
c) Regulation of water and solute movement
d) Storage of genetic information
