AIPMT MAINS2011Zoology-Respiratory System
AIPMT MAINS 2011 Zoology Gas Transport MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Bulk of carbon dioxide (CO₂) released from body tissues into the blood is present as
A
70% carbamino-haemoglobin and 30% as bicarbonate
B
Carbamino-haemoglobin in RBCs
C
Bicarbonate in blood plasma and RBCs
D
Free CO₂ in blood plasma
Correct Answer
Option C
Detailed Explanation
20-25% of CO₂ is transported by RBCs in the form of carbamino hemoglobin. Whereas, 70% is carried as bicarbonate about 7% of CO₂ is carried in a dissolved state in plasma.
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