Biology Practice Problems Osmoregulation and Excretion Practice Problems Solution: How does the nephron contribute to acid base balan...

Solution: How does the nephron contribute to acid base balance?

Problem

How does the nephron contribute to acid base balance?



Solution

The kidneys have two very important roles in maintaining the acid–base balance:

  1. They reabsorb bicarbonate from urine.
  2. They excrete hydrogen ions into urine.

It has several powerful mechanisms to control pH by the excretion of excess acid or base. The major, homeostatic control point for maintaining a stable pH balance is renal excretion.

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