Zoology-Gas Exchange
NEET Zoology Gas Exchange MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a diagram showing the exchange of gases at the alveolar level, where deoxygenated blood becomes oxygenated. Which component primarily facilitates the binding of oxygen in this process?
A
Hemoglobin in red blood cells
B
Dissolved oxygen in plasma
C
Carbonic anhydrase enzyme
D
Bicarbonate ions
Correct Answer
Option A
Detailed Explanation
The majority of oxygen (97%) is transported by binding with hemoglobin in red blood cells, forming oxyhemoglobin, as described in the NCERT context.
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