NEET Zoology Blood Components MCQ Question
Which of the following statements is true about RBCs in humans?
They carry about 20-25 percent of CO₂.
They transport 99.5 percent of O₂.
They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma.
They do not carry CO₂ at all.
Correct Answer
Detailed Explanation
RBCs transport the majority of oxygen in the blood, with about 99.5% bound to hemoglobin and only a small fraction dissolved in plasma.
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