NEET Biology Body Fluids And Circulation MCQs Set 15

Biology Objective Questions and Answers: Body Fluids and Circulation

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Multiple Choice Questions

Question 1: Match the plasma proteins with their functions: A fibrinogen, B globulins, C albumins; (i) defence, (ii) osmotic balance, (iii) coagulation.
(a) A-iii, B-i, C-ii
(b) A-i, B-iii, C-ii
(c) A-iii, B-ii, C-i
(d) A-ii, B-i, C-iii
Show Answer & Explanation

Answer: (a) A-iii, B-i, C-ii

Explanation:
1. Fibrinogen helps clotting, globulins are antibodies for defence and albumins maintain osmotic balance

Teacher's Note:
1. Recall the NCERT fact.

Question 2: Reduction in the number of which blood cells can cause clotting disorders and excessive blood loss?
(a) leucocytes
(b) neutrophils
(c) thrombocytes
(d) erythrocytes
Show Answer & Explanation

Answer: (c) thrombocytes

Explanation:
1. Thrombocytes (platelets) start clotting

Teacher's Note:
1. Recall the NCERT fact.

Question 3: Agranulocytes are:
(a) eosinophils and neutrophils
(b) monocytes and lymphocytes
(c) eosinophils and lymphocytes
(d) lymphocytes and basophils
Show Answer & Explanation

Answer: (b) monocytes and lymphocytes

Explanation:
1. Monocytes and lymphocytes have no visible cytoplasmic granules

Teacher's Note:
1. Recall the NCERT fact.

Question 4: Blood normally contains how many platelets per mm3?
(a) 150000 to 350000
(b) 6000 to 8000
(c) 5 to 5.5 million
(d) 40000 to 50000
Show Answer & Explanation

Answer: (a) 150000 to 350000

Explanation:
1. The normal platelet count is 1,50,000 to 3,50,000 per mm3

Teacher's Note:
1. Recall the NCERT fact.

Question 5: During blood coagulation, vitamin K helps in:
(a) the formation of thromboplastin
(b) conversion of fibrinogen to fibrin
(c) conversion of prothrombin to thrombin
(d) the formation of prothrombin
Show Answer & Explanation

Answer: (d) the formation of prothrombin

Explanation:
1. Vitamin K is needed by the liver for synthesis of prothrombin and other clotting factors

Teacher's Note:
1. Recall the NCERT fact.

Question 6: In the human ABO table, blood group O has the following in the blanks: antigens on RBCs (i), antibodies in plasma (iii), donor groups (iv).
(a) (i) Nil, (iii) Nil, (iv) O
(b) (i) Nil, (iii) Anti-A, B, (iv) AB
(c) (i) Anti-A, B, (iii) Nil, (iv) O
(d) (i) Nil, (iii) Anti-A, B, (iv) O
Show Answer & Explanation

Answer: (d) (i) Nil, (iii) Anti-A, B, (iv) O

Explanation:
1. Group O has no antigens, has both anti-A and anti-B antibodies, and can receive only from O

Teacher's Note:
1. Recall the NCERT fact.

Question 7: For a safe blood transfusion:
(a) the donor's RBC should not carry antibodies against the recipient's serum
(b) the recipient's plasma should not contain antigens against the donor's antibodies
(c) the recipient's plasma should not contain antibodies against the donor's antigens
(d) the recipient's RBC should not contain antibodies against the donor's antigens
Show Answer & Explanation

Answer: (c) the recipient's plasma should not contain antibodies against the donor's antigens

Explanation:
1. Antibodies in the recipient's plasma would agglutinate donor RBC carrying the matching antigens

Teacher's Note:
1. Recall the NCERT fact.

Question 8: In erythroblastosis foetalis, ___A___ from the mother can leak into the blood of the foetus. This can be avoided by giving ___B___ to the mother after delivery of the first child.
(a) A Rh-antigen, B Rh-antibody
(b) A Rh-antibody, B Rh-antigen
(c) A Rh-antibody, B anti-Rh antibodies
(d) A anti-Rh antibodies, B Rh-antibody
Show Answer & Explanation

Answer: (c) A Rh-antibody, B anti-Rh antibodies

Explanation:
1. The Rh-negative mother's antibodies cross the placenta
2. Anti-Rh antibodies are given to destroy foetal Rh+ cells before she makes her own antibodies

Teacher's Note:
1. Recall the NCERT fact.

Question 9: Match: A lymphatic system, B pulmonary vein, C thrombocytes, D lymphocytes with (i) carries oxygenated blood, (ii) immune response, (iii) drains tissue fluid back to the circulation, (iv) coagulation of blood.
(a) A(i), B(ii), C(iii), D(iv)
(b) A(iii), B(i), C(iv), D(ii)
(c) A(iii), B(i), C(ii), D(iv)
(d) A(ii), B(i), C(iii), D(iv)
Show Answer & Explanation

Answer: (b) A(iii), B(i), C(iv), D(ii)

Explanation:
1. The lymphatic system returns tissue fluid, the pulmonary vein carries oxygenated blood, thrombocytes help coagulation and lymphocytes mediate immunity

Teacher's Note:
1. Recall the NCERT fact.

Question 10: Different blood groups are due to:
(a) specific antigens on the surface of WBCs
(b) specific antibodies on the surface of RBCs
(c) specific antigens on the surface of RBCs
(d) a specific type of haemoglobin in RBCs
Show Answer & Explanation

Answer: (c) specific antigens on the surface of RBCs

Explanation:
1. ABO groups depend on the antigens A and B on red cells

Teacher's Note:
1. Recall the NCERT fact.

Question 11: The following are needed for blood clotting:
(a) Ca++ and vitamin E
(b) Ca++ and vitamin K
(c) Ca++ and vitamin A
(d) K+ and vitamin K
Show Answer & Explanation

Answer: (b) Ca++ and vitamin K

Explanation:
1. Calcium ions and vitamin K are required for the clotting cascade

Teacher's Note:
1. Recall the NCERT fact.

Question 12: A person with blood group AB is a universal recipient because he has:
(a) both A and B antigens on RBC but no antibodies in plasma
(b) both A and B antibodies in plasma
(c) no antigen on RBC and no antibody in plasma
(d) both A and B antigens in plasma but no antibodies
Show Answer & Explanation

Answer: (a) both A and B antigens on RBC but no antibodies in plasma

Explanation:
1. AB has both antigens on red cells and neither anti-A nor anti-B antibody in plasma

Teacher's Note:
1. Recall the NCERT fact.

Question 13: Erythroblastosis foetalis occurs when:
(a) the mother is Rh+ve, the father is Rh-ve, and the first and second children are Rh+ve
(b) the mother is Rh-ve, the father is Rh+ve, and the first and second children are Rh+ve
(c) the mother is Rh-ve, the father is Rh+ve, and the first and second children are Rh-ve
(d) the mother is Rh-ve, the father is Rh+ve, the first child is Rh-ve and the second is Rh+ve
Show Answer & Explanation

Answer: (b) the mother is Rh-ve, the father is Rh+ve, and the first and second children are Rh+ve

Explanation:
1. An Rh-negative mother becomes sensitised by the first Rh+ve child, and her antibodies affect the second Rh+ve child

Teacher's Note:
1. Recall the NCERT fact.

Question 14: Incomplete double circulation is found in:
(a) fish and amphibia
(b) amphibia and reptiles
(c) reptiles and birds
(d) birds and mammals
Show Answer & Explanation

Answer: (b) amphibia and reptiles

Explanation:
1. Amphibians and most reptiles have a three-chambered heart, so oxygenated and deoxygenated blood mix

Teacher's Note:
1. Recall the NCERT fact.

Question 15: In which group is the blood pumped by the heart into large vessels that open into spaces or body cavities?
(a) Amphibia
(b) Annelida
(c) Mollusca
(d) Birds
Show Answer & Explanation

Answer: (c) Mollusca

Explanation:
1. Molluscs and arthropods have an open circulatory system, whereas annelids have a closed one

Teacher's Note:
1. Recall the NCERT fact.

Question 16: Arteries are best defined as the vessels which:
(a) supply oxygenated blood to the different organs
(b) carry blood away from the heart to different organs
(c) break up into capillaries which reunite to form a vein
(d) carry blood from one visceral organ to another
Show Answer & Explanation

Answer: (b) carry blood away from the heart to different organs

Explanation:
1. Arteries carry blood away from the heart, and not all of it is oxygenated (pulmonary artery)

Teacher's Note:
1. Recall the NCERT fact.

Question 17: Which set of blood vessels contains oxygenated blood?
(a) pulmonary artery and coronary artery
(b) pulmonary vein and renal vein
(c) pulmonary vein and coronary artery
(d) pulmonary artery and renal portal vein
Show Answer & Explanation

Answer: (c) pulmonary vein and coronary artery

Explanation:
1. The pulmonary vein carries oxygenated blood from the lungs, and the coronary artery supplies it to the heart muscle

Teacher's Note:
1. Recall the NCERT fact.

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Multiple Choice Questions (MCQs) for NEET Biology Body Fluids and Circulation

About Body Fluids and Circulation MCQs for NEET Biology

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FAQs

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