In order to buffer the acidity of the blood, when would hydrogen ions need be excreted and bicarbonate ions be reabsorbed?
A) only when the lung system is not working
B) when the blood is acidic
C) when the blood is basic
D) when the blood is neutral pH, which is not normal
E) The kidney never excretes or reabsorbs hydrogen and bicarbonate ions.

Question

Quizplus · Accepted Answer

Hydrogen ions need to be excreted and bicarbonate ions need to be reabsorbed when the blood is acidic. This is a mechanism the body uses to maintain the pH of the blood within a narrow range. When the blood becomes too acidic, the kidneys excrete hydrogen ions and reabsorb bicarbonate ions to restore the pH to a normal level.

In Order to Buffer the Acidity of the Blood, When