NCERT CLASS 11 | TOPIC : BODY FLUIDS AND CIRCULATION | QB-1 | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : BODY FLUIDS AND CIRCULATION | QB-1 | NEET BIOLOGY ONLINE TEST

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It contains 100 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : www.onlinetest.kalvisolai.com

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1 ➤ 1. Select the incorrect statement from the following:

(a) Simple organisms like sponges and coelenterates circulate water from their surroundings through their body cavities to facilitate the cells to exchange substances. (b) Different groups of animals have evolved the same method for transport. (c) Blood is the most commonly used body fluid by most of the higher organisms for transport. (d) Lymph also helps in the transport of certain substances in human.

2 ➤ 2. Blood is a special connective tissue that consists of

(a) Fluid matrix (b) Plasma (c) Formed elements (d) All of these

3 ➤ 3. The colour of Plasma is

(a) Straw colour (b) Red colour (c) Colourless (d) Blue colour

4 ➤ 4. How much percentage of plasma is water?

(a) 90 to 92 (b) 80 to 90 (c) 60 to 65 (d) 10 to 15

5 ➤ 5. How much protein is present in plasma (in %)?

(a) 2 to 4% (b) 6 to 8% (c) 10% (d) 15 to 20%

6 ➤ 6. Which protein is required for coagulation?

(a) Fibrinogen (b) Globulin (c) Albumin (d) All of these

7 ➤ 7. The formed element constitutes how much per cent of blood?

(a) 55 (b) 45 (c) 35 (d) 65

8 ➤ 8. Find out the incorrect statement:

(a) Globulins are primarly involved in the defence mechanism of body. (b) Albumin is mainly the osmotic protein of blood. (c) Plasma without clotting factor is called serum. (d) The factors for coagulation of blood are also present in the plasma in an active form.

9 ➤ 9. The most abundant cell in human blood are

(a) Neutrophils (b) Monocytes (c) Lymphocytes (d) None of these

10 ➤ 10. Number of erythrocyte in mm3 of blood are

(a) 4.5 to 5 million (b) 5 to 5.5 million (c) 5.5 to 6.5 million (d) 3 million

11 ➤ 11. Shape of RBC in mammal is

(a) Oval (b) Biconvex (c) Biconcave (d) Flattened

12 ➤ 12. The true statement about RBC is

(a) RBCs have an average life span of 120 days. (b) RBCs are destroyed in the spleen (graveyard of RBCs). (c) RBCs are devoid of nucleus in most of the mammals. (d) All the above

13 ➤ 13. Leucocytes are known as WBC as they are colourless due to

(a) Presence of nucleus (b) White pigment present in them (c) Lack of haemoglobin (d) All of these

14 ➤ 14. Basophil secrete

(a) Histamine (b) Serotonin (c) Heparin (d) All of these

15 ➤ 15. Which of the following is associated with allergic reactions?

(a) Neutrophils (b) Monocytes (c) Eosinophils (d) Lymphocyte

16 ➤ 16. Which of the following is an incorrect statement about leucocytes?

(a) They are nucleated. (b) They are approximately in an average of 6000–8000 mm-3 of blood cells in numbers. (c) Two main types are found they are granulocytes and agranulocytes. (d) Monocytes are most abundant WBCs.

17 ➤ 17. Lymphocyte forms how much per cent of WBCs?

(a) 20 to 25 (b) 2 to 3 (c) 6 to 8 (d) 60 to 65

18 ➤ 18. Which of the following cells are responsible for immune responses of the body?

(a) T–lymphocyte (b) B–lymphocyte (c) Both (a) and (b) (d) Astrocyte

19 ➤ 19. Platelets are

(a) Cell fragments of megakaryocyte (b) 1.5 to 3.5 lac/mm3 in blood (c) Also called thrombocytes (d) All of these

20 ➤ 20. ABO grouping is based on how many antigens present or absent on WBCs

(a) 1 (b) 2 (c) 3 (d) None of these

21 ➤ 21. Select the correct statement from the following:

(a) Surface antigen on RBC always induce autoimmune response. (b) Blood grouping (ABO) is an example of multiple allelism. (c) AB blood group is a universal recipient as well as donor. (d) 4 phenotype of blood group (ABO) are possible and 5 genotype of blood group (ABO) are possible.

22 ➤ 22. A patient with blood group ‘A’ was injured in an accident and has lost a lot of blood during injury. Which blood group the doctor should effectively use in this case?

(a) AB (b) A/O (c) B/O (d) AB/A/B

23 ➤ 23. How many people are Rh +ve in human population?

(a) 80% (b) 20% (c) 60% (d) 40%

24 ➤ 24. Rh incompatibility in first pregnancy occurs when

(a) Foetus develop its heart completely (b) During the delivery of first child (c) When foetal organs completely develop (d) Never occur in the first pregnancy

25 ➤ 25. Erythroblastosis fetalis is

(a) HDN (b) Rh incompatibility (c) Both (a) and (b) (d) None of these

26 ➤ 26. There is a vertical transmission of Rh antibody from mother to foetus because they are _________ type of antibody

(a) Ig M (b) IgG (c) Ig A (d) Ig D

27 ➤ 27. Select the incorrect statement from the following:

(a) Clot or coagulum is formed mainly by a network of fibrin in which the died and damaged formed element of blood are trapped. (b) Inactive fibrinogen is converted to fibrin by the hormone thrombin. (c) Prothrombin is converted into thrombin by the enzyme complex thrombokinase. (d) Platelet or injured tissue released certain factors which initiate coagulation.

28 ➤ 28. Select the incorrect statement from the following:

(a) When platelet releases certain factor which initiate clotting it is known as intrinsic pathway. (b) When injured tissue releases certain factor which initiate clotting it is known as extrinsic pathway. (c) Calcium plays a minor role in clotting. (d) Coagulation prevent excessive loss of blood from the body from injured part.

29 ➤ 29. Which enzyme causes conversion of prothrombin into thrombin?

(a) Thrombinase (b) Prothrombinase (c) Thrombokinase (d) Rennin

30 ➤ 30. Blood is a special type of connective tissue which

(a) Consists of a fluid matric (Plasma) (b) Forms elements (c) Is the most commonly used body fluid in most of the higher organism (d) All the above

31 ➤ 31. How many mechanism are there for clotting in our body?

(a) 1 (b) 2 (c) 3 (d) 4

32 ➤ 32. Lymph is known as

(a) Tissue fluid (b) Interstitial fluid (c) Both (a) and (b) (d) Plasma

33 ➤ 33. Lymph

(a) Transports oxygen to brain (b) Transports CO2 to lungs (c) Returns interstitial fluid to blood (d) Returns RBCs and WBCs to lymph nodes

34 ➤

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A) B) C) D)

35 ➤ 35. Find the correct descending order to the percentage proportion of leucocytes in human blood.

(a) Neutrophils → Basophils → Lymphocytes → Acidophils (Eosinophils) → Monocytes (b) Neutrophils → Monocytes → Lymphocytes → Acidophils → Basophils (c) Neutrophils → Lymphocytes → Monocytes → Acidophils → Basophils (d) Neutrophils → Acidophils → Basophils → Lymphocytes → Monocytes

36 ➤ 36. In case of emergency, which blood group could be safely transfused?

(a) AB R– (b) AB Rh+ (c) O Rh– (d) O Rh+

37 ➤ 37. Which of the following is expected if husband is Rh+ and wife is Rh-?

(a) No problem in the first pregnancy (b) Problems in future pregnancies (c) Both (a) and (b) (d) No problem in any pregnancy

38 ➤ 38. What is the correct order of these events?

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1. Conversion of fibrinogen to fibrin

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2. Clot retraction and leakage of serum

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3. Thromoboplastin formation

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4. Conversion of prothrombin to thrombin

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(a) 3, 2, 1, 4 (b) 3, 4, 1, 2 (c) 3, 4, 2, 1 (d) 4, 1, 3, 2

39 ➤ 39. Open circulatory system is found in

(a) Arthopods and molluscs (b) Annelids and Chordates (c) Annelids and arthopods (d) Fishes and molluscs

40 ➤ 40. Closed circulatory system is found in

(a) Arthropod and chordates (b) Molluscs and chordates (c) Amphibians and molluscs (d) Annelids and chordates

41 ➤ 41. In an open circulatory system,

(a) There is no heart (b) There is no need of blood vessels (c) There are open spaces or sinuses in the body (d) All the above

42 ➤ 42. Which of the following has a closed type of circulatory system?

(a) Cockroach (b) Fish (c) Scorpion (d) Mollusc

43 ➤ 43. Which of the following has a closed blood vascular system?

(a) Cockroach (b) Hydra (c) Sponge (d) Earthworm

44 ➤ 44. Single heart circuit occurs in

a) Fishes (b) Frogs (c) Reptiles (d) Man

45 ➤ 45. Four chambered heart is found in

(a) Cobra (b) Tortoise (c) Salamander (d) Crocodile

46 ➤ 46. Select the correct matching:

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(A) Fishes (i) 3 chambered

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(B) Amphibian (ii) 4 chambered

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(C) Reptiles (iii) 1 chambered

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(D) Birds (iv) 2 chambered

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(E) Mammals

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(F) Crocodile

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(a) (A), (B)–(iii) (b) (B), (C)–(i) (c) (D), (E), (F)–(iv) (d) (A), (B), (C)–(ii)

47 ➤ 47. Incomplete double circulation is found in

(a) Amphibia (b) Reptiles (c) Fishes (d) Both (a) and (b)

48 ➤ 48.

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The given diagram represent circulation in

(a) Fishes (b) Amphibians (c) Birds (d) Reptiles

49 ➤ 49.

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The given diagram shows circulation found in

(a) Amphibian (b) Reptiles (c) Both (a) and (b) (d) Birds

50 ➤ 50. Double circulation is found in

(a) Birds (b) Crocodile (c) Mammals (d) All of these

51 ➤ 51. Heart is derived from

(a) Ectoderm (b) Endoderm (c) Mesoderm (d) All of these

52 ➤ 52. In fishes, the blood circulation is represented as

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The given flow of blood indicates that it is a

(a) Double circulation (b) Single circulation (c) Incomplete single circulation (d) Incomplete double circulation

53 ➤ 53. Which of the following statements is not true?

(a) Heart is ectodermal in origin. (b) In human beings the heart is situated in the thoracic cavity, in between the two lungs slightly tilted to the left. (c) Human heart has the size of a clenched fist. (d) Heart is protected by a double walled membranous bag (pericardium) with pericardial fluid.

54 ➤ 54. Select the total number of thick structure out of the following: (A) Interatrial septum (muscular wall) (B) Interventricular septum (C) Atrioventricular septum (fibrous) (D) Walls of ventricles

(a) 1 (b) 2 (c) 3 (d) 4

55 ➤ 55. How many papillary muscles are present in right ventricle?

(a) 1 (b) 2 (c) 3 (d) 4

56 ➤ 56. Apex of heart is

(a) Upper and tilted toward left (b) Lower and tilted towards left (c) Upper and tilted towards right (d) Lower and tilted towards right

57 ➤ 57. Which of the following organs has papillary muscles?

(a) Ciliary body (b) Legs (c) Wall of heart (d) Mammary glands

58 ➤ 58. The full form of label ‘A’ in the diagram is

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(a) Sin–Atrial–Node (b) Sinu–Atrial–Node (c) Sino–Atrial–Node (d) Sinus–Atrial–Node

59 ➤ 59. Bundle of HIS consists of

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(A) Right bundle branch

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(B) Left bundle branch

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(C) Purkinje fibres

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(D) AV bundle

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(a) A, B and C only (b) A, B, C, D (c) B, C and D only (d) C and D only

60 ➤ 60. Bicuspid valve/mitral valve is found between

(a) Left atrium and left ventricle (b) Right atrium and right ventricle (c) Right atrium and left ventricle (d) Left atrium and right ventricle

61 ➤ 61. Tricuspid valve is present between the

(a) Two atria (b) Two ventricles (c) Left atrium and left ventricle (d) Right atrium and right ventricle

62 ➤ 62. Chordae tendinae are found in

(a) Joints (b) Atria of heart (c) Ventricles of heart (d) Ventricles of brain

63 ➤ 63. Ventricles are thick-walled as compared to atrium because

(a) It is to receive blood from atria (b) It is present on the posterior side (c) It has to pump blood (d) None of these

64 ➤ 64. Papillary muscles are located in

(a) Heart ventricles of human (b) Dermis of mammalian skin (c) Orbits of vertebrate eyes (d) Pylorus of vertebrate stomach

65 ➤ 65. Purkinje fibres are found in

(a) Brain (b) Kidneys (c) Skin (d) Heart

66 ➤ 66. Which of the following has the thickest wall?

(a) Left auricle (b) Left ventricle (c) Right auricle (d) Right ventricle

67 ➤ 67. ‘Heart of heart’ is

(a) SA node (b) AV node (c) Bundle of HIS (d) Purkinje fibres

68 ➤ 68. SA node is located in

(a) Upper left corner of right atrium (b) Lower left corner of left atrium (c) Lower right corner of left atrium (d) Upper right corner of right atrium

69 ➤ 69. Human heart is

(a) Neurogenic (b) Myogenic (c) Cardiogenic (d) Digenic

70 ➤ 70. Which of the following term does not apply to human heart?

(a) Pacemaker (b) Four chambered (c) Mitral valve (d) Neurogenic

71 ➤ 71. Rate of heartbeat is determined by

(a) SA node (b) AV node (c) Purkinje fibres (d) Papillary muscles

72 ➤ 72. In amphibia, the heart has

(a) Two auricles and two ventricles (b) Two auricles and one ventricle (c) One auricle and two ventricles (d) One auricle, one ventricle and one sinus venosus

73 ➤ 73. SA node is called the pace maker of the heart. Why?

(a) It can change contractile activity generated by AV node. (b) It delays the transmission of impulse between the atria and ventricles. (c) It gets stimulated when it receives neural signal. (d) It initiates and maintains the rhythmic contractile activity of heart.

74 ➤ 74. Sino-Atrial node (SAN) can generate impulses

(a) 70–75 min–1 (b) 50–55 min–1 (c) 35–40min–1 (d) 90–100 min–1

75 ➤ 75. The impulse of heartbeat originates from

(a) SAN (b) AVN (c) Vagus nerve (d) Cardiac nerve

76 ➤ 76. Rate of heart is determined by

(a) SAN (b) AVN (c) Purkinje fibres (d) Bundle of His

77 ➤ 77. Bundle of HIS is a group of

(a) Ganglia (b) Nerve fibres (c) Muscular fibres (d) Connective tissue

78 ➤ 78. Bundle of HIS found in

(a) Right atrium (b) Left atrium (c) Both (a) and (b) (d) Interventricular septum

79 ➤ 79. An atrioventricular valve prevents the back flow or leakage of blood from the

(a) Right ventricle into the right atrium (b) Left atrium into the left ventricle (c) Aorta into the left ventricle (d) Pulmonary vein into the right atrium

80 ➤ 80. How many double circulation are normally completed by the human heart in one minute?

(a) 8 (b) 16 (c) 36 (d) 72

81 ➤ 81. The duration of cardiac cycle in a normal man is

(a) 0.8 seconds (b) 80 seconds (c) 60 seconds (d) 72 seconds

82 ➤ 82. During systole of heart

(a) Only atria contracts (b) Only ventricles contract (c) Atria and ventricles contract separately (d) Atria and ventricles contract simultaneously

83 ➤ 83. During diastole, blood

(a) Enters the heart (b) Leaves the heart (c) Leaves the ventricle (d) Enters into lungs

84 ➤ 84. During ventricular systole the oxygenated blood is pumped into the

(a) Aorta and deoxygenated blood is pumped into the pulmonary artery. (b) Pulmonary artery and deoxygenated blood is pumped into the artery. (c) Aorta and deoxygenated blood is pumped into pulmonary vein. (d) Pulmonary vein and deoxygenated blood is pumped into pulmonary artery.

85 ➤ 85. To reach the left side of heart, the blood must pass through

(a) Lungs (b) Liver (c) Kidneys (d) Sinus venosus

86 ➤ 86. Mammals are said to have double circulation. It means

(a) Blood vessels are paired. (b) There are two types of blood vessels attached to every organ. (c) There are two systems, one from the heart to the lungs and back to the rest of the body. (d) Blood circulates twice through the heart.

87 ➤ 87. In mammals, veins differs from arteries in having

(a) Thicker walls (b) Deeply present (c) Carry blood away from heart (d) Internal valves

88 ➤ 88. An artery is

(a) Thick walled in which blood flows under low pressure. (b) Thin walled in which blood flows under high pressure. (c) Thick walled in which blood flows under high pressure. (d) Thin walled in which blood flows under low pressure.

89 ➤ 89. Cells constituting the wall of capillaries are

(a) Parietal (b) Endothelial (c) Oxyntic (d) Haemocytes

90 ➤ 90. A muscular wall is absent in

(a) Venule (b) Vein (c) Capillary (d) Arteriole

91 ➤ 91. Contraction of right ventricle pumps blood into

(a) Dorsal aorta (b) Pulmonary vein (c) Coronary artery (d) Pulmonary artery

92 ➤ 92. Arteries carry oxygenated blood except in

(a) Pulmonary (b) Cardiac (c) Hepatic (d) Systemic

93 ➤ 93. When ventricular systole occurs

(a) Atrial diastole coincides (b) Tricuspid and bicuspid valves close (c) Semilunar valves guarding pulmonary artery and aorta are forced to open (d) All the above

94 ➤ 94. During cardiac cycle, about _________ % of ventricular filling occurs prior to atrial contraction. _________ % ventricular filling occurs due to atrial contraction

(a) 50, 50 (b) 70, 30 (c) 30, 70 (d) 10, 90

95 ➤ 95. Which of the following events do not occur during joint diastole? A. All four chambers of heart are in relaxed state. B. Tricuspid and bicuspid valves open. C. Action potential is conducted from SAN to AVN. D. Blood from the pulmonary veins and vena cava flows into the left and right ventricles respectively through the left and right atria. E. The semilunar valves are closed.

(a) Only E (b) Only C (c) Only D (d) Only A and B

96 ➤ 96. The amount of blood to be pumped out by each ventricle/minute is

(a) Stroke volume (b) Cardiac output (c) ERV (d) ZRV

97 ➤ 97. During cardiac cycle each ventricle pumps out about 70 mL of blood which is called

(a) Stroke volume (b) Cardiac output (c) Tidal volume (d) Residual volume

98 ➤ 98. Cardiac output is

(a) Stroke volume (SV) × Heart rate (HR) = 5 L/m (b) SV × HR = 500 ml (c) SV × HR = 72 ml/m (d) SV × HR = 70 ml/m

99 ➤ 99. Which of the following statement is incorrect?

(a) Cardiac output of an athlete is much higher than that of an ordinary man. (b) In each minute a single cardiac cycle is performed. (c) During each cardic cycle two prominent sounds are produced. (d) Cardiac cycle includes atrial systole, ventricular systole and joint diastole.

100 ➤ 100. Identify the correct sequence of events in a cardiac cycle:

(a) Diastole, atrial systole, ventricular diastole (B) Atrial systole, ventricular diastole, ventricular systole (c) Atrial systole, ventricular systole, joint diastole (d) Ventricular diastole, diastole, ventricular systole, atrial systole

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