Question

What hormone promotes the reabsorption of sodium and potassium ions by the kidney?

Answer 1

Hormone that promotes the reabsorption of sodium and potassium ions by the kidney:

1. Aldosterone is responsible for the secretion of potassium ions by the kidneys.
2. Aldosterone is a steroid hormone that is secreted by the outer layer of the adrenal cortex called the zona glomerulosa.
3. It helps in increasing salt-like sodium ions and water reabsorption into the bloodstream from the kidney.
4. Aldosterone helps in increasing the blood volume, hence it restores the level of salt and blood pressure.