NEET Botany Transport of Gases MCQ Question
How many statements are not correct for transport of oxygen?
(i) About 97 per cent of O₂ is transported by RBCs in the blood.
(ii) Each haemoglobin molecule can carry a maximum of four molecules of O₂
(iii) Binding of oxygen with haemoglobin is primarily related to partial pressure of O₂.
(iv) Partial pressure of CO₂, hydrogen ion concentration and temperature are the other factors which can interfere with this binding.
(v) A sigmoid curve is obtained when percentage saturation of haemoglobin with O₂ is plotted against the PO₂
(vi) Every 100 of oxygenated blood can deliver around 5 ml of CO₂ to the lungs under normal physiological conditions.
One
Two
Three
Four
Correct Answer
Detailed Explanation
Statement (vi) is incorrect as oxygenated blood delivers oxygen, not CO₂, to the tissues.
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