Question

Which of the following is involved in chloride shift?

• A. O${}_2$ and CO${}_2$
• B. HCO${}_3$${}^{-}$
• C. CO${}_2$
• D. O${}_2$

Answer 1

Answer: (B)

HCO${}_3$${}^{-}$

The movement of chloride ions from the plasma into red blood cells as a result of the transfer of carbon dioxide from tissues to the plasma is known as chloride shift. It is a process that serves to maintain blood pH. So it is related with both chloride ion and bicarbonate ion.

So, the correct answer is 'HCO${}_3$${}^{-}$

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