What is the amount of $O_{2}$ supplied to tissues through every $100 \ ml$ of oxygenated blood under normal physiological conditions (in $ml$)?

Identify enzymes $A$ and $B.$
$CO_2 + H_2O \rightleftharpoons H_2CO_3 \rightleftharpoons HCO_3^- + H^+$

By whom and in what amount does the transport of gases occur during respiration?

Refer to the following statements:
$I$. Carbonic anhydrase is present in the erythrocytes.
$II$. In erythrocytes,the carbon dioxide combines with water and is transported.

Why does the blood not become acidic during the transport of $CO_2$?

The majority of carbon dioxide produced by our body cells is transported to the lungs as