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Biology MCQS[NEET-2021 to 2022]-Anatomy mcq for competitive exams
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1. In man the normal number of chromosomes is
42
46
41
45
2. Which of the following parts does not take part in the process of breathing
Trachea
Diaphragm
Bronchi
None of the above
3. Which one of the following elements is needed in the human body to transfer electric signals by nerve cells?
Lithium
Caesium
Rubidium
Sodium
4. If bilrubin is high in human body, which of the following organs is effected?
Pancreas
Liver
Kidney
Small Intestine
5. In the human body, appendix is attached to
Large intestine
Small intestine
Stomach
Gall bladder
6. In the human body, which one of the following hormones regulates blood calcium and phosphate?
Glucagon
Growth hormone
Parathyroid hormone
Thyroxine
7. In human beings, normally, the sperm fertilises the ovum in which of the following parts?
Cervix
Fallopian tube
Lower part of uterus
Upper part of uterus
8. Which one of the following parts of human brain is the regulating centre for swallowing and vomiting?
Cerebellum
Cerebrum
Medulla oblongata
Pons
9. Which one of the following types of tissues have contractile proteins?
Nervous tissue
Muscle tissue
Bone tissue
Blood tissue
10. Which part of the brain controls respiration
Cerebral cortex
Medulla oblongata
Cerebellum
Cerebrum
11. The function of Trypsin is to
break down fats
synthesize proteins
break down proteins
break down carbohydrates
12. Muscle fatigue is caused by the accumulation of
Pyruvic acid
Lactic acid
Oxalacetic acid
Uric acid
13. Which are not included in the milk-teeth in a child of 3-4 years ?
Incisors
Canines
Molars
Premolars
14. What does enamel cover?
Crown of the tooth
Dentin on all sides
Cementum
Cementum and partly dentin
15. The acid which is secreted by the glands in the stomach wall is
phosphoric acid
nitric acid
hydrochloric acid
sulphuric acid
16. Which one of the following organs excretes water, fat and various catabolic wastes?
Skin
Kidney
Spleen
Salivary glands
17. A surge of which hormone stimulates ovulation in human females?
Luteinizing hormone
Estrogen
Follicle stimulating hormone
Progesterone
18. Universal receivers can receive blood from
Group AB only
Group O only
Groups O, A, B, AB
Groups A, AB
19. The enzyme that is present in the saliva of man is
Pepsin
Amylase
Trypsin
Renin
20. Which one of the following is the correct sequence in the order of decreasing length of the three structural parts given below of small intestine in the human body ?
Ileum - Jejunum - Duodenum
Jejunum - Ileum - Duodenum
Ileum - Duodenum - Jejunum
Jejunum - Duodenum - Ileum
21. Which one of the following is not a digestive enzyme in the human system?
Trypsin
Gastrin
Ptyalin
Pepsin
22. Dehydration in human body is caused due to the loss of -
Hormones
Salts
Vitamins
Water
23. Production of which one of the following is a function of the liver?
Lipase
Urea
Mucus
Hydrochloric acid
24. If by an unknown accident the acid secreting cells of the stomach wall of an individual are damaged, digestion of which one of the following biomolecule will be affected to a greater extent?
Protein only
Lipid
Carbohydrate
Protein and carbohydrate
25. When we eat something we like, our mouth waters. This is actually not water but fluid secreted from
nasal glands
oval epithelium
salivary glands
tongue
26. Which of the following is known as the voice box
trachea
pharynx
epiglottis
larynx
27. Which one among the following will be absorbed fastest through the wall of digestive system
Black coffee as a hot beverage
DDT taken as a poison
Raw alcohol taken as a drink
Ice cream as a desert
28. It has been observed the astronauts lose substantial quantity of calcium through urine during space flight. This is due to
hypergravity
microgravity
intake of dehydrated food tablet
low temperature in cosmos
29. Cutting and peeling of onion bring tears to the eyes because of the presence of
sulfur in the cell
carbon in the cell
fat in the cell
aminoacid in the cell
30. The contractile proteins in a muscle are
Actin and Myosin
Actin and Tropomyosin
Myosin and Troponin
Troponin and Tropomyosin
31. Which of the following is not an enzyme
Amylase
Pepsin
Somatotropin
Trypsin
32. Which is the heaviest organ of our body?
Liver
Skin
Pancreas
Heart
33. Which one of the following is not a part of small intestine
Caecum
Duodenum
Jejunum
Ileum
34. Sweat glands belong to
Integumentary system
Digestive system
Muscular system
Excretory system
35. Our human body has
206 bones
210 bones
212 bones
203 bones
36. All enzymes are actually
Carbohydrates
Proteins
Fatty acids
Sterols
37. Inspiration and Expiration are done by
Digestive system
Skeletal system
Muscular system
Respiratory system
38. Which organ works as an excretory and a sense organ?
Lungs
Kidney
Skin
Liver
39. Cartilage present in body is
a muscular tissue
an epithelial tissue
a connective tissue
a germinal tissue
40. Circulatory system contains the
Lungs
Brain
Heart
Stomach
41. Which one among the following glands is present in pairs in human body
Adrenal
Liver
Pancreas
Pineal
42. Lobsters and crabs have .
Blue blood
White blood
Colourless blood
Red blood
43. Blood transports
Oxygen
Hormones
Nutrient
All of the above
44. During the process of respiration in human beings, the exchange of gases takes place in
bronchi
alveoli
bronchiole
pleura
45. Which one of the glands in human body produces the growth hormone (Somatotropin)
Adrenal
Pancrease
Pituitary
Thyroid
46. Which one of the following is a pigment?
Albumin
Elastin
Keratin
Melanin
47. In human beings, the opening of the stomach into the small intestine is called
caecum
ileum
oesophagus
pylorus
48. In which part of the human body do we find the islet of langerhans
brain
pancreas
kidney
liver
49. Cell or tissue death within a living body is called as
Neutrophilia
Nephrosis
Necrosis
Neoplasia
50. Which part of the human eye is transplanted from a dead donor to a living person
cornea
retina
iris
sclera
51. In the human body, nails are made up of
melanin
keratin
enamel
cartilage
52. Sweating during exercise indicates operation of which one of the following processes in the human body
Enthalpy
Homeostasis
Phagocytosis
Osmoregulation
53. Pituitary gland is situated in
The base of the heart
The base of the brain
The neck
The abdomen
54. Smooth muscles are found in the
Stomach
Blood vessels
Intestine
All of the above
55. In which part of the human body is the smallest bone found
wrist
palm
nose
ear
56. Skeletal system produces
Hormones
Sperms
Blood cells
None of the above
57. Which among the following is the largest endocrine gland of human body
Thyroid
Parathyroid
Adrenal
Pituitary
58. Which one of the following enzymes is found in human saliva
Trypsin
Pepsin
Ptyalin
Rennin
59. The blood is filtered and the waste is separated by
Ductless glands
Kidney
Heart
Pancreas
60. Which system regulates water level and body temperature?
Nervous
Skeletal
Endocrine
Circulatory
61. The skeletal system is made up of bone
206
306
606
200
62. The ovaries produce female gametes called
Sperms
Hormones
Egg
None of the above
63. The Central Nervous System is made up of
Spinal cord
Brain
Liver
Both A and B
64. Hormones regulate
Body functions
Water level
Body temperature
Blood flow
65. How many herbs are used in the preparation of Siddha medicine?
1100
1200
800
1300
66. Cardiac muscle is present in the
Kidney
Lungs
Heart
Liver
67. Unit of Nervous System is .
Neurons
Nerves
Brain
Spinal cord
68. Aerobic exercises supply
Carbon dioxide
Oxgyen
Energy
Fats
69. The chief organ in the Circulatory System
Lungs
Heart
Vein
Kidney
70. The skin of man weighs about
7 kg
10 kg
9 kg
12 kg
71. Every organ in our body is made up of
flesh
Musscles
Bones
Cells
72. Respiratory organs are
Heart
Kidney
Liver
Lungs
73. Kidneys excrete
Urine
Acids
Bases
Water
74. Blood carries waste materials to
Alimentary Canal
Lungs
Kidneys
Heart
75. The colour of the kidney is
Red
Yellow
Dark yellow
Dark red
76. is a Dravidian system of medicine
Siddha
Unani
Ayurveda
Homeopathy
77. A state of complete physical, mental and social well being is called
Disease
Health
Diet
Unhealthy
78. The brain is located in the .
Abdomen
Spinal cord
Skull
Stomach
79. Insulin is secreted by
Kidneys
Endocrine
Pancreas
Heart
80. Pasteurization method was discovered by
Hippocrates
Louis Pasteur
Agastiyar
None
81. Bone marrow is composed of
adipose tissue, areolar tissue and blood
adipose and areolar tissue
adipose tissue and fibroblasts
adipose tissue
82. Bone marrow takes part in
assisting liver
assisting kidneys
controlling blood pressure
as haemopoietic tissue
83. Haversian canals occur in
clavicle
Pubis
Humerus
scapula
84. Hyaline cartilage does not possess
Cells
fibres
lacunae
blood capillaries
85. Mammalian pinna is supported by
hyaline cartilage
elastic cartilage
calcified cartilage
white fibrous connective tissue
86. Membrane surrounding a bone is called
periosteum
endo steum
pericardium
perichondrium
87. Major inorganic components of vertebrate bone is
calcium carbonate
calcium phosphate
potassium hydroxide
None of the above
88. Haversian canals found in bones contain
artery and vein
osteoblasts in areolar tissue
nerve and lymph vessel
All of these
89. The functional unit of contractile system in striated muscle is
myofibril
Cross bridges
Z band
sarcomere
90. Which of the following is the contractile protein of a muscle?
Tubulin
Myosin
Tubulin
All of these
91. The contractile protein of skeletal muscle involving ATPase activity is
actin
Myosin
troponin
tropomyosin
92. Muscle fatigue sets in due to non availability of
Calcium
ATP
actin binding site
Mg cofactor
93. Light band has which of the following filament protein?
Myosin
Actin
Myosin and actin
None of these
94. Upon stimulation of skeletal muscles calcium is immediately made available for binding to troponin from
sarcoplasmic reticulum
Blood
Lymph
Bone
95. What is sarcomere
Part between two H line
Part between two A line
Part between two Z line
Part between two I band
96. Acute vision is present in
Bat
Frog
Shark
vulture
97. Which of the following cranial nerves can regulate heart beat?
VII
VIII
IX
X
98. The junction between the axon of one neuron and the dendrite of the next is called
a joint
a synapse
constant bridge
junction point
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