Question

Assertion (A): Adrenal medulla secretes glucocorticoids which regulate glucose levels of the blood. 

Reason (R): Glucocorticoids, a kind of cortisone, stimulate the deposition of extra glucose in blood as glycogen in the liver and muscles. The roles of insulin and glucocorticoids are the same.

1. A is True and R is False.
2. A is False and R is True.
3. Both A and R are True.
4. Both A and R are False.

Options

• (1)

• (2)

• (3)

• (4)

Answer 1

(4)

Explanation:

The glucocorticoids are secreted by the adrenal cortex, not by the adrenal medulla. The adrenal medulla mainly secretes adrenaline and noradrenaline. Therefore, the Assertion (A) is false.

Glucocorticoids generally increase blood glucose by promoting glucose formation. They do not have the same action as insulin. Insulin lowers blood glucose and promotes the conversion of excess glucose into glycogen. Therefore, the Reason (R) is also false.

Hence, both A and R are false.