Important General Biology MCQs - 14
1. One mole of haemoglobin containing blood carries how much oxygen,
(a) 16 ml
(b) 18 ml
(c) 20 ml ✓
(d) 22 ml
2. The rate of breathing is regulated by
(a) Amount of oxygen in the blood
(b) Amount of carbon dioxide in blood ✓
(c) Amount of oxygen in the cells
(d) Amount of carbon dioxide in the cells
3. The exchange of carbon dioxide and oxygen gas between the cell and the atmosphere during photosyntehsis takes place by
(a) Active transport ✓
(b) Facilitated diffusion
(c) Osmosis
(d) Diffusion
4. Leucocytes (white blood cells) are produced in
(a) Lymph ✓
(b) Spleen
(c) Bone marrow
(d) Ribs
5. Haemophilia is because of absence of
(a) Rh factor
(b) Clotting ✓
(c) Antigens
(d) Antibodies
6. Anaemia is because of deficiency of
(a) Iron
(b) B12
(c) Folic acid
(d) All these ✓
7. Amount of water in mammalian blood is
(a) 99%
(b) 98%
(c) 94% ✓
(d) 92%
8. What is the function of platelets?
(a) Kill the bacteria
(b) Carry the oxygen ✓
(c) Produce antibodies
(d) Clothing the blood
9. The process of breakdown of complex organic molecules into simpler compounds in order to get energy is
(a) Anabolism
(b) Catabolism ✓
(c) Metabolism
(d) Reduction
10. Vertebral column in human beings consists of how many vertebrae?
(a) 5
(b) 10
(c) 12
(d) 33 ✓
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