Question

Assertion `CO_(2)` transport occurs very fast through RBCs.
Reason : Enzyme carbonic anhydrase is absent in blood plsama.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true, but Reason is true
D. Assertion is false and Reason is true.

Answer 1

Correct Answer - C
Transport of `CO_(2)` by blood is much easier than that of oxygen due to high solubility of `CO_(2)` in water. About 70% of `CO_(2)` is transported through RBCs. `CO_(2)` entres in RBCs , where it reacts with water to from carbonic acid in the presence of carbonic anhydrase. most of the carbonic acid rapidly dissociates to form bicarbonate and hydrogen ions.