Identify the correct statement with reference to transport of respiratory gases by blood.

Options

A. Hemoglobin is necessary for transport of carbon dioxide and carbonic anhydrase for transport of oxygen
B. Hemoglobin is necessary for transport of oxygen and carbonic anhydrase for transport of carbon dioxide
C. Only oxygen is transported by blood
D. Only carbon dioxide is transported by blood

Answer

B

Explanation

About `97%` of oxygen is transported by combining with hemoglobin to form Oxyhemoglobin about `20-25%` of carbon dioxide is transported by combining with hemoglobin to form carboxyl-hemoglobin.