Question
In which form CO2 is mostly carried by blood
bicarbonate
carbonic acid
Carbamino compound
Carboxyhaemoglobin
Solution
A.
bicarbonate
Carbon dioxide is transported in the blood fromthe tissue to the lungs in three ways:
(i) dissolved insolution;
(ii) buffered with water as carbonic acid;
(iii) bound to proteins, particularly haemoglobin.
Approximately 75% of carbon dioxide is transport inthe red blood cell and 25% in the plasma.
