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NEET Previous Year Question

$The bulk of carbon dioxide C O_{2} released from body tissues into the blood is present as$

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

A $Bicarbonate in blood plasma and RBCs.$
B $Free C O_{2} in blood plasma.$
C $70 per cent carbamino haemogloin and 30 per cent as bicarbonate.$
D $Carbamino haemoglobin in RBCs.$

Correct answer: A

Solution

(a) About 70% of C O_{2} is transported in blood as bicarbonate ions (HCO_{3}^{-}) present in plasma and RBCs.

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