Breathing and Exchange of Gases Question 27

27. The process of migration of chloride ions from plasma to RBC and of carbonate ions from $RBC$ to plasma is

(a) chloride shift

(b) ionic shift

(c) atomic shift

(d) $Na+$ pump

Show Answer

Answer : a

Hints & Solution

(a) During the transport of $CO_2$ through the blood, bicarbonate ions diffuse out of RBCs while chloride ions from plasma enter the $RBCs$ to maintain ionic equilibrium. This is called chloride shift.



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