Question

question 37
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under the influence of aldosterone, potassium is exchanged for which of the following?
calcium
sodium
chloride
phosphate

Explanation:

Aldosterone is a hormone that acts on the kidneys. Its main function is to regulate the balance of sodium and potassium ions. It promotes the re - absorption of sodium ($Na^{+}$) and the excretion of potassium ($K^{+}$). This is a key concept in understanding electrolyte balance in the body.

Answer:

B. Sodium