Carbon di oxide is transpoed in plasma as:September 2005: (A) Dissolved form, (B) Carbamino compounds, (C) Bicarbonate, (D) All of the above
Answer is D. Ans. D: All of the aboveCO2 is carried in blood in three different waysMost of it (about 70% - 80%) is conveed to bicarbonate ions by the enzyme carbonic anhydrase in the red blood cells5% - 10% is dissolved in the plasma5% - 10% is bound to hemoglobin as carbamino compounds