Biology MCQs- General Knowledge

1. Bowman’s Capsule’ works as a part of the functional unit of which among the following human physiological system? 
(A)Circulatory System 
(B)  Respiratory System
 (C)Excretory System
 (D)Reproductive System

Answer: Option C

2. Which among the following have a ‘mixed heart’ ,that is the heart in which the oxygenated and the deoxygenated blood is mixed?
 (A) Birds
 (B) Fishes
(C)Reptiles
 (D) Nematodes

Answer: Option C

1. The number of bones in the human body of an adult is approximately 

(A) 210

(B) 250

(C) 206

(D) Not fixed

Answer: Option C

3.What is the main purpose of white blood corpuscles?
(A) To carry nutrients
(B) To combat infection
(C) To carry oxygen
(D) To give strength

Answer: Option B

4.Red blood corpuscles are formed in the
(A) Liver
(B) Bone marrow
(C) Kidneys
(D) Heart

Answer: Option B

5.Total volume of blood in a normal human being is
(A) 5-6 liters
(B) 3-4 liters
(C) 8-10 liters
(D) 10-12 liters

Answer: Option A

6.Blood does not coagulate inside the body due to the presence of 
(A) Haemoglobin
(B) Heparin
(C) Fibrin
(D) Plasma

Answer: Option B

7.Lungs are situated in the
(A) Abdominal cavity
(B) Pericardial cavity
(C) Buccal cavity
(D) Thoracic cavity

Answer: Option D

8.The seat of memory in the human brain is located in the
(A) Medulla oblongata
(B) Cerebrum
(C) Cortex
(D) Cerebellum

Answer: Option C

9. Saffron’ is obtained from which among the following parts of the plant? 
(A)Stigma 
(B)Anther
 (C)Stamen
 (D)Pollen

Answer: Option A

10. Which among the following is not a ‘heriditary’ disease?
 (A) Thalessemia 
(B)Colour-Blindness
 (C) Haemophilia
 (D) Leukemia

Answer: Option D

11. Tibia is a bone found in the
(A) Skull
(B) Arm
(C) Leg
(D) Face

Answer: Option C

12. The strongest muscle found in human body is?
(A) Hands
(B) Buttocks
(C) Neck
(D) Legs

Answer: Option B

13. The pancreas secretes
(A) Insulin
(B) Vitamin A
(C) Bile juice
(D) None of these

Answer: Option A

14. The ligaments join
(A) Muscle to muscle
(B) bone to bone
(C) Muscle to bone
(D) None of these

Answer: Option B

15. ____ muscle is the strongest of all in the human body. 
(A) Jaw
(B) Thigh
(C) Calf
(D) Upper arm

Answer: Option B

16. Sweat glands occur in greatest number in the skin of the
(A) Forehead
(B) Armpits
(C) Back
(D) Palm of hand

Answer: Option B

17. The total number of bones in human skull are
(A) 8
(B) 12
(C) 30
(D) 32

Answer: Option C

18. In what form is the food in onion stored?
(A) Sugar
(B) Cellulose
(C) Starch
(D) Protein

Answer: Option B

19. The plant part rich in carbohydrates is
(A) Potato tuber
(B) Spinach leaf
(C) Onion
(D) Orange fruit

Answer: Option B

20. Which of the following is not in the inner ear?
(A) Eustachian tube
(B) Cochlea
(C) Semicircular canals
(D) Sacculus

Answer: Option A

21. The normal temperature of human body is
(A) 90°F
(B) 98°F
(C) 98.6°F
(D) 96.4°F

Answer: Option C

22. Antibodies are?
(A) Carbohydrates
(B) Enzymes
(C) Proteins
(D) Hormones

Answer: Option C

23. Insulin, a protein acts as?
(A) An antibody
(B) A hormone
(C) An enzyme
(D) A transport agent

Answer: Option B

24. Turnip is a root described as
(A) Napiform
(B) Fusiform
(C) Coucial
(D) Tuberous

Answer: Option A

25. The glands of the body which pour their secretions directly into the blood stream are known as
(A) Exocrine glands
(B) Endocrine glands
(C) Heterocrine glands
(D) Compound glands

Answer: Option B

26. Human Papilloma Virus is related to which of the following diseases? 

(A) Prostate Cancer

 (B)Cervical Cancer

 (C)Lymphatic Filariasis 

(D) Leukemia

Answer: Option B

27. Which of the following is known as graveyard of RBCs

(A) Liver
(B) Bone marrow
(C) Spleen
(D) Appendix

Answer: Option C

28. In which form glucose is stored in the liver?
(A) Lactic acid
(B) Lactose
(C) Ribose
(D) Glycogen

Answer: Option C

29. Which of the following glands in human body is popularly called 'Adam's apple'? 
(A) Adrenal
(B) Pituitary
(C) Thyroid
(D) Thymus

Answer: Option C

30. Anemophily’ is pollination by :

 (A) Birds

 (B) Wind

 (C)Ants 

(D) Bats

Answer: Option B

31. In which form glucose is stored in the liver?
(A) Lactic acid
(B) Lactose
(C) Ribose
(D) Glycogen

Answer: Option C

32. Respiratory centre is situated in
(A) Cerebrum
(B) Cerebellum
(C) Medulla oblongata
(D) Diencephalon

Answer: Option C

33.In the human body, the leg bones are
(A) Humerus and Femur
(B) Fibula and Tibia
(C) Fibula and Ulna
(D) Tibia and Radius

Answer: Option A

34.Deficiency of calcium leads to?
(A) Anaemia
(B) Tetany
(C) Scurvy
(D) Rickets

Answer: Option D

35. Ready source of energy available for athletes is
(A) Carbohydrates
(B) Fats
(C) Proteins
(D) Vitamins

Answer: Option A

36. Why do we feel drowsy after a heavy meal?
(A) The biological clock is upset
(B) The body muscles are fatigued
(C) The hypothalamus produces melatonin to induce sleep
(D) Brain receives less oxygen as blood rushes to supply oxygen and nutrition to the contracting stomach and intestines

Answer: Option D

37.Chromosomes are
(A) Present only in the nucleus of a cell
(B) The biggest in number in human cells
(C) Made up of DNA as a main component
(D) Visible in all cells at every time

Answer: Option C

38. The part of the cell which is essential for protein synthesis is
(A) Chloroplast
(B) Ribosomes
(C) Golgi bodies
(D) Chromosomes

Answer: Option B

39. Short sightedness is due to:
(A) Shifting of the iris
(B) Weaker muscles
(C) Elongation of eyeballs
(D) Weakening of the retina

Answer: Option C

40. There are approximately ____ muscles in human body
(A) 200
(B) 350
(C) 500
(D) 700

Answer: Option D

41.The organ which destroys worn out RBCs in the body of a vertebrate is
(A) Pancreas
(B) Bone marrow
(C) Liver
(D) Spleen

Answer: Option D

42. Biological death of a patient means death of tissues of the
(A) Kidney
(B) Heart
(C) Lungs
(D) Brain

Answer: Option D

43. Which of the following hormones contains iodine?
(A) Adrenaline
(B) Insulin
(C) Testosterone
(D) Thyroxine

Answer: Option D

44. The saliva helps in the digestion of
(A) Proteins
(B) Fats
(C) Fibres
(D) Starch

Answer: Option D

45.The main function of the kidney is
(A) To control blood pressure
(B) To control body temperature
(C) To remove waste products from the body
(D) To help in digestion of food

Answer: Option C

46. The function of haemoglobin is
(A) To transport oxygen
(B) Destruction of bacteria
(C) Prevention of anaemia
(D) Utilization of energy

Answer: Option A

47. A gene is a
(A) Sleep inducing drug
(B) Unit of heredity
(C) A kind of vitamin
(D) A type of body cell

Answer: Option B

48. A vegetable containing sulphur is?
(A) Potato
(B) Cabbage
(C) Brinjal
(D) Pumpkin

Answer: Option B

49.Enzymes help in
(A) Respiration
(B) Digestion of food
(C) Immune system
(D) Reproduction

Answer: Option B

50. Ptyalin is an enzyme produced in the
(A) Salivary glands
(B) Pituitary glands
(C) Thyroid glands
(D) Pancreas

Answer: Option A

51. Plants which are adapted to grow in soils containing high concentration of salt are known as:
 (A) Xerophytes
 (B) Mesophytes
 (C) Halophytes
 (D) Thal

Answer: Option C

52 Heightened emotion is caused by
(A) Pituitary glands
(B) Thyroid glands
(C) Adrenal glands
(D) Salivary glands

Answer: Option C

53.The shortest bone in the human body is
(A) Vertebrae
(B) Stapes
(C) Phalanges
(D) Metacar

Answer: Option B

54.A balanced diet contains
(A) Animal protein
(B) Macro and micronutrients
(C) Food nutrients for growth and maintenance
(D) Butter and ghee

Answer: Option C

55. Wisdom teeth normally grow between the age of
(A) 34-40
(B) 17-30
(C) 45-55
(D) 10-17

Answer: Option A

56. Lack of ____ causes diabetes
(A) Sugar
(B) Insulin
(C) Calcium
(D) Vitamins

Answer: Option B

57. Biopsy is done on
(A) Tissue taken from a dead body
(B) Tissue taken from a living body
(C) Blood from veins
(D) Blood from arteries

Answer: Option B

58.Triple antigen vaccine is given to children to protect them against
(A) Polio
(B) Whooping cough
(C) Tuberculosis
(D) Contagious diseases

Answer: Option B

59. A man weighing 96 kg consists of approximately ____ litres of water
(A) 50 litres
(B) 66.5 litres
(C) 82 litres
(D) 42 litres

Answer: Option B

60.What does blood consists of?
(A) 60% plasma, 40% corpuscles
(B) 40% plasma, 60% corpuscles
(C) 25% plasma, 75% corpuscles
(D) 90% plasma, 10% corpuscles

Answer: Option A

61. Pituitary gland is located just below the
(A) Brain
(B) Heart
(C) Liver
(D) Kidney

Answer: Option A

62. Mother's milk lacks:
(1) Vitamin C    (2) Proteins   (3) Sodium   (4) Iron
(A) 1 and 3
(B) 2 and 3
(C) 1 and 4
(D) 2 and 4

Answer: Option C

63. During sleep a man's blood pressure
(A) Increase
(B) Decrease
(C) Remains constant
(D) Fluctuates

Answer: Option D

64. A victim of a road accident order the steps in first 
1. Treating for cardiac arrest
2. Treating for asphyxia
3. Treating for shock
4 Arrest haemorrhage
5 Cleanse and cover wounds
(A) 1, 2, 3, 4, 5
(B) 2, 1, 4, 3, 5
(C) 2, 3, 1, 4, 5
(D) 5, 2, 1, 3, 4

Answer: Option A

65. 'Dossier' means
(A) The do of medicine
(B) The actual thing
(C) Relevant papers
(D) Unarranged papers

Answer: Option C

66.Which among the following function as locus of biochemical reactions? 
(A)Cell plasma
 (B)Cell membrane 
(C) Cell walls 
(D) None of the above

Answer: Option B

67.A genetic code specifies how many kinds of amino acids?

 (A)12

 (B) 15

 (C) 20 

(D) 25

Answer: Option C

68.A genetic code specifies how many kinds of amino acids? 

(A) 12 

(B) 15 

(C) 20 

(D) 25

Answer: Option C

69.What fraction of Human Blood is Plasma?

 (A)35% 

(B) 45% 

(C) 50%

 (D) 55%

Answer: Option D

70.How many vertebrae does a human being have ?

 (A) 33

 (B) 36

 (C) 29

 (D) 19

71.Which among the following is wood cellulose? 

(A) Rayon 

(B) Balata 

(C) Cork

(D) None of the above

Answer: Option A