Question

Name the hormone secreted by adrenal cortex which controls water and salt concentration in urine.

• A. Adrenaline
• B. Aldosterone
• C. Norepinephrine
• D. Corticosterone

Answer 1

Answer: (B)

Aldosterone

A. Adrenaline, also known as emergency hormone, is secreted from the adrenal medulla. This hormone is associated with maintenance of homeostasis in body and is secreted in response to any kind of stress or emergency in the body.

B. Aldosterone is a mineralocorticoid hormone secreted from the adrenal cortex. It maintains the electrolyte balance in the body by reducing the loss of sodium through urine and sweat.

C. Norepinephrine or nor-adrenaline is secreted from adrenal medulla. It regulates blood pressure by causing vasoconstriction.

D. Corticosterone is a glucocorticoid secreted from adrenal cortex. It stimulates water reabsorption from the renal tubules and also promotes formation and storage of glycogen.

So, the correct answer is 'Aldosterone'.