Quiznetik

Biology-Physics-Chemistry (GK) | Set 1

1. Which gland is not associated with human alimentary canal?

Correct : B. adrenal gland

2. In humans, bile juice is secreted by

Correct : D. liver

3. An enzyme which can only act in acidic medium is

Correct : A. pepsin

4. The part of digestive system where no digestion occurs

Correct : B. esophagus

5. Which of the following animals has no need for a gall bladder?

Correct : A. horse

6. About how much saliva does a person produce each day?

Correct : D. 1500 ml

7. Saliva has the enzyme

Correct : B. ptyalin

8. Curdling of milk in the stomach is due to the action of

Correct : B. rennin

9. Pepsinogen is secreted by

Correct : C. chief cells

10. Pancreas has

Correct : C. two types of cells-exocrine and endocrine

11. Largest gland in human body is

Correct : A. liver

12. Grana refers to

Correct : C. stacks of thylakoids

13. A specific function of light energy in the process of photosynthesis is to

Correct : A. activate chlorophyll

14. ATP formation during photosynthesis is known as

Correct : B. photophosphorylation

15. Dark reaction in photosynthesis is called so because

Correct : A. it does not require light energy

16. Which of the following is connected with transport of water in plants?

Correct : B. xylem

17. The ultimate cause for movement of water against gravity in a tree is

Correct : C. transpiration

18. Which of the following is not an example of a selectively permeable membrane?

Correct : B. cell Wall

19. Which of the following is responsible for guttation?

Correct : A. root pressure

20. Phenyl mercuric acetate

Correct : A. reduces transpiration rate

21. Which of the following has no blood but respires?

Correct : A. earthworm

22. Which type of respiratory organs are present in spiders and scorpions?

Correct : A. book lungs

23. At high altitude, RBCs of human blood will

Correct : A. increase in number

24. Vocal cords occur in

Correct : D. larynx

25. Which one of the following structures closes the respiratory passage during ingestion of food?

Correct : B. epiglottis

26. The covering of lungs is called

Correct : B. pleural membrane

27. The narrowest and most numerous tubes of lungs are termed as

Correct : C. bronchioles

28. The exchange of gases in a mammal takes place is

Correct : D. alveoli

29. Volume of air inspired and expired with each normal breath is called

Correct : A. tidal volume

30. Tidal volume of air in a normal healthy man during inspiration is about

Correct : B. 500 – 700 ml

31. The maximum possible volume of air, which can be inspiration, is called as

Correct : B. vital lung capacity

32. Percentage of O2 present in inhaled air in man is about

Correct : A. 21%

33. Oxygen is transported in blood mainly by

Correct : B. erythrocytes

34. Asthma is a respiration disease caused due to

Correct : D. spasm in bronchial muscles

35. Mountain sickness results due to

Correct : B. arterial hypoxia

36. Which one of the following is the most common type of transpiration?

Correct : A. stomatal

37. The process of the escape of liquid from the tip of uninjured leaf or through hydathodes is called

Correct : B. guttation

38. In a closed circulatory system, blood is completely enclosed within

Correct : C. vessels

39. The smallest blood vessel in the body is a

Correct : A. capillary

40. Both erythrocytes and leucocytes are formed in the

Correct : A. bone marrow

41. An erythrocyte lives for approximately

Correct : C. four months

42. The abnormal increase in the total RBC count is referred to as

Correct : B. polycythemia

43. The life span of human WBC is normally

Correct : A. 12–13 days

44. The function of vitamin K is in

Correct : C. respiration

45. Oxygenated blood is carried by

Correct : A. pulmonary vein

46. In mammals, oxygenated blood enters the heart at the

Correct : B. left atrium

47. Which chamber of the heart has the thickest muscular walls

Correct : D. left ventricle

48. When the right ventricle of heart contracts, the blood goes to

Correct : D. lungs

49. The tricuspid valve occurs between the

Correct : A. right auricle and right ventricle

50. Typical ‘lub-dub’ sound heard in heartbeat are due to

Correct : C. closure of bicuspid-tricuspid valves followed by semilunar valves

51. What is blood pressure?

Correct : B. the pressure of blood exerted on the walls of arteries and veins

52. Which one of following is called pace maker of the heart?

Correct : A. SA node

53. Blood groups in man were discovered by

Correct : D. Landsteiner

54. Rh factor was discovered by

Correct : B. Landsteiner

55. Rh factor is named after

Correct : B. a Monkey

56. Excretion means

Correct : A. removal of substances present in excess

57. A mammal excretes nitrogen in the form of

Correct : C. urea

58. Kidneys are not only organs of excretion. Their work is supplemented by

Correct : A. liver

59. The basic unit of a vertebrate kidney is the

Correct : B. nephron

60. The two kidneys lie

Correct : C. left kidney at a higher level than the right one

61. Function of glomerulus in mammalian kidney is

Correct : B. urine formation through blood filtration

62. The reabsorption of glucose in a nephron occurs in

Correct : B. first half of proximal tubule

63. Strongest cartilage is

Correct : B. fibrous cartilage

64. Striated muscles are found in

Correct : C. leg muscles

65. Strongest muscle in the body is present in

Correct : C. thigh

66. Axial skeleton in man is made up of

Correct : D. 80 bones

67. Skull of man is made up of

Correct : B. 22 bones

68. Longest bone is that of

Correct : C. femur

69. In man ribs are attached to

Correct : C. sternum

70. The smallest bone in mammals is

Correct : D. stapes

71. The longest cell in the body of an animal is

Correct : B. neuron

72. Which cell stops dividing after birth?

Correct : D. neuron

73. The largest number of cells bodies of neurons in our body is found in

Correct : A. brain

74. Which part of human brain is more developed in comparison of others?

Correct : A. cerebrum

75. Which part of mammalian brain controls the muscular co-ordination?

Correct : B. cerebellum

76. There are how many pairs of spinal nerves in a human

Correct : D. 31

77. There are how many pairs of cranial nerves in a human?

Correct : B. 12

78. Pituitary gland is found in

Correct : D. brains

79. Which of the hormones is responsible for the emotional state such as fear and anger and causes rise of blood pressure and rate of heartbeat?

Correct : B. adrenaline

80. The main function of plasma membrane is to

Correct : C. regulate the flow of materials into and out of the cell

81. Function of a Centriole is

Correct : A. formation of spindle fibers

82. Functional activities of a cell are controlled by

Correct : A. nucleus

83. Study of Algae is called

Correct : A. phycology

84. Which of the following is a non-poisonous snake?

Correct : B. python

85. Which of the following diseases is caused by a virus?

Correct : C. influenza

86. DTP vaccine is given to infants to immunize them against

Correct : B. diphtheria, whooping cough and tetanus

87. Jaundice is a disease of

Correct : C. liver

88. Male mosquito does not carry malarial parasite because:

Correct : B. it lacks the modified mouth parts

89. Continuous fever, headache, slow pulse, pain in the stomach, rose colored ashes are the major symptoms of

Correct : D. measles

90. Bark of which plant yields famous drug of malaria?

Correct : A. cinchona

91. Deficiency of vitamin C causes

Correct : C. scurvy

92. If there were no ultraviolet rays reaching the earth, human should suffer from deficiency of

Correct : C. vitamin D

93. Smog is a combination of

Correct : B. smoke and fog

94. Sound becomes a hazardous noise pollution if its level is a above

Correct : C. 80 dB

95. Maximum threat to the world is from (among the following)

Correct : B. ozone hole

96. Which of the following is the symbol of the metal that occurs in liquid form at ordinary temperature?

Correct : D. Hg

97. Which of the following is least compressible?

Correct : C. solid

98. Which of the following is not a chemical change?

Correct : B. converting water into steam

99. Atomicity of Phosphorous is

Correct : C. 4

100. The number of atoms present in a molecule of an element is known as its

Correct : B. atomicity