Zoology-Gas Exchange
NEET Zoology Gas Exchange MCQ Question
Type: MCQ-conceptual-Hard-Class 11
Which of the following combinations correctly describes aspects of the transport of gases in the human body?
A
Oxygen is primarily transported by hemoglobin, while carbon dioxide is mainly carried as bicarbonate.
B
All carbon dioxide is transported in a dissolved state through plasma.
C
Hemoglobin can bind to three molecules of oxygen, and 100% of oxygen is transported in red blood cells.
D
Oxygen transport in the blood does not depend on the partial pressure of oxygen.
Correct Answer
Option A
Detailed Explanation
Oxygen is transported about 97% by red blood cells in association with hemoglobin, while around 70% of carbon dioxide is carried as bicarbonate, making option A correct. The other options contain inaccuracies regarding gas transport.
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