Multiple choice

Which of the following statements concerning the bicarbonate ions in the kidney tubule is INCORRECT?

  1. Bicarbonate ions are freely filtered in the glomerulus.

  2. Bicarbonate ions are reabsorbed in the distal tubule.

  3. Carbonic anhydrase catalyses the formation of bicarbonate ions.

  4. The secretion of hydrogen ions results in bicarbonate reabsorption.

  5. If required, the bicarbonate ions can function as a base in the kidneys.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The major site of reabsorption of bicarbonate ions is the proximal tubule.

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