Which of these statements does NOT apply to potassium
A)It is secreted in the proximal tubule.
B)It is actively secreted in the distal and collecting tubules.
C)Its secretion is controlled by aldosterone.
D)Its secretion is linked with Na⁺ reabsorption by the Na⁺-K⁺ pump.

Question

Quizplus · Accepted Answer

Potassium is not secreted in the proximal tubule but rather reabsorbed there. It is actively secreted in the distal and collecting tubules and its secretion is controlled by aldosterone, which also stimulates Na⁺ reabsorption by the Na⁺-K⁺ pump.

Which of These Statements Does NOT Apply to Potassium