Human Physiology MCQ Questions and Answers for Practice

1. Combination of heam with O₂ is called

1. Oxyhaemoglobin
2. Oxidation
3. Oxygenation
4. Oxidized haem

2. Adult haemoglobin contains ................ polypeptide chains

1. 2alpha,2Gamma
2. 2alpha,2Beta
3. 2alpha,2Delta
4. 2Beta,2Gamma

3. Average mean corpuscular diameter is ................ µm

1. 5.1
2. 6.3
3. 7.3
4. 8.5

4. Commonest anaemia in India is

1. Pernicious anaemia
2. Sickle cell anaemia
3. Iron deficiency anaemia
4. None of the above

5. During erythropoiesis haemoglobin first appears in

1. Early normoblast
2. Intermediate normoblast
3. Late normoblast
4. Pronormoblast

6. During hypoxia Kidney releases

1. Renin
2. Renal Erythopoietic factor
3. Erythropoietin
4. None of the above

7. Each gram% of haemoglobin, when fully saturated, can carry ................ ml of O₂

1. 1.34 ml
2. 3.14 ml
3. 4.13 ml
4. 5ml

8. Each haemoglobin molecules carries ................ number of O₂ molecules

1. 2
2. 4
3. 1
4. 8

9. In RER, ribosomes are located on

1. the cytoplasmic side
2. on the luminal side
3. both (a) and (b)
4. all throughout

10. In Sickle cell anaemia, the defect lies in which polypeptide

1. Alpha chain
2. Beta chain
3. Gamma chain
4. Delta chain

11. Increase in RBC count beyond 10 million per cu mm is known as

1. Anisocytosis
2. Poikilocytosis
3. Polycythemia
4. Leucocytosis

12. Intrinsic factor is secreted by

1. Liver
2. Chief cells of stomach
3. Parietal cells of stomach
4. Beta cells of pancreas

13. Largest WBCs in peripheral blood is

1. Neutrophil
2. Large lymphocyte
3. Monocyte
4. Eosinophil

14. Smallest blood cell is

1. Small lymphocyte
2. Platelet
3. RBC
4. Neutrophil

15. The process by which WBCs squeeze through pores in capillary wall is

1. Chemotaxis
2. Pinocytosis
3. Opsonization
4. Diapedesis