Question

Identify correct statement regarding transport of respiratory gases through blood

• A. Only oxygen is transported
• B. Only $C{O}_2$ is transported
• C. Haemoglobin is necessary for transport of $O_2$ and carbonic anhydrase for $C{O}_2$
• D. Haemoglobin is necessary for transport of $C{O}_2$ and carbonic anhydrase for $O_2$.

Answer 1

The correct option is C Haemoglobin is necessary for transport of $O_2$ and carbonic anhydrase for $C{O}_2$

C. Haemoglobin is necessary for transport of O2 and carbonic anhydrase for CO2

Solution: The main respiratory gases are oxygen and carbon dioxide. Oxygen is transported by attaching with the haemoglobin in RBCs. Carbonic anhydrase is an enzyme that assists in rapid inter-conversion of carbon dioxide and water in carbonic acid, hydrogen ions and bicarbonate ions. Majority of the carbon dioxide in blood are transported in the form of bicarbonate ions.

So the correct answer is "Haemoglobin is necessary for transport of O2 and carbonic anhydrase for CO2."