Question

Carbon dioxide in the blood is mostly carried as:
a) Carboxyhaemoglobin
b) Dissolved form in plasma
c) Carbonates attached with WBC
d) Bicarbonates attached with platelets

Answer 1

Explanation:

Carbon dioxide is transported in the blood from the tissue to the lungs in three ways:1 (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Approximately 75% of carbon dioxide is transport in the red blood cell and 25% in the plasma