NEET Biology · Medium

Breathing and Exchange of Gases: Carbon dioxide transport MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Carbon dioxide transportMediumQuestion 9222

Question

In human blood, the largest fraction of carbon dioxide is transported as:

  1. A
    Bicarbonate ions
    Correct
  2. B
    Carbaminohaemoglobin only
  3. C
    Free dissolved gas only
  4. D
    Carbon monoxide

Correct answer

Bicarbonate ions

Explanation

Most CO2 is converted into bicarbonate and transported in plasma.