NEET Zoology Gas Exchange MCQ Question
Which of the following combinations correctly describes aspects of the transport of gases in the human body?
Oxygen is primarily transported by hemoglobin, while carbon dioxide is mainly carried as bicarbonate.
All carbon dioxide is transported in a dissolved state through plasma.
Hemoglobin can bind to three molecules of oxygen, and 100% of oxygen is transported in red blood cells.
Oxygen transport in the blood does not depend on the partial pressure of oxygen.
Correct Answer
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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