In plasma, carbon-di-oxide is mainly transported as: (Repeat)

A. Dissolved CO2

B. HCO3-

C. Carboxy haemoglobin

D. Carbamino haemoglobin

Correct Answer: HCO3-

Description: Ans: B (HCO3-) Ref: Pal GK. Transport of gases in blood. In: Textbook of medical physiology. Ahuja publishing house. 2007: 91: 733.Explanation:Carbon Dioxide Transport in Blood1. HCO3- in plasma and in RBCs - 70%2. Formation of carbamino compounds with plasma protein (23%)3. Dissolved form (7%)

Category: Physiology

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