During the transport of gases,to maintain the ionic balance,chloride ions shift from

Where is the enzyme $Carbonic \text{ } Anhydrase$ found in high concentration?

What is the effect of $pCO_{2}$ on oxygen transport?

$CO_{2}$ diffuses into ...$A$... and forms $HCO_{3}^{-}$ and $H^{+}$. At the ...$B$... site where $pCO_{2}$ is low, the reaction proceeds in the opposite direction.
Thus, $CO_{2}$ is trapped as ...$C$... at the tissue level and transported to alveoli is released out as ...$D$...
Select the right choice for $A, B, C$ and $D$ to complete the given $NCERT$ statement.

The transport of carbon dioxide from tissues to the respiratory surface occurs primarily through ..........

During $CO_2$ transport,the movement of chloride ions across the membrane of $RBCs$ from plasma is called . . . . . . .