CO2 is transported in plasma as_____________?
Correct answer: A. Bicarbonate
- A. Bicarbonate
- B. Carbomino compounds
- C. Dissolved
- D. CO
Explanation
Most carbon dioxide is converted inside red blood cells to bicarbonate, which then circulates in the plasma; only a smaller fraction is dissolved or bound to proteins. This makes bicarbonate the major form of CO₂ transport.
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