Zoology-(general)
NEET Zoology (general) MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following combinations correctly describe the transport of gases in the blood?
A
97% of O2 is carried by hemoglobin, 70% of CO2 is transported as bicarbonate.
B
All O2 is dissolved in plasma, 20% of CO2 is transported by RBCs.
C
Hemoglobin binds O2 irreversibly, 7% of CO2 is carried in a dissolved state.
D
O2 binds with hemoglobin independently of partial pressure, 3% of CO2 is carried in plasma.
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, about 97% of O2 is transported by RBCs while 70% of CO2 is carried as bicarbonate. The other options contain inaccuracies regarding the transport mechanisms of O2 and CO2.
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