Question

Assertion (A): Deficiency of Antidiuretic hormone causes an increase in urination.

Reason (R): Antidiuretic hormone acts on the kidney to reabsorb water from the kidney tubules.

Options

• (A) is true and (R) is false.

• (A) is false and (R) is true.

• Both (A) and (R) are true.

• Both (A) and (R) are false.

Answer 1

Both (A) and (R) are true.

Explanation:

Vasopressin, an antidiuretic hormone, promotes reabsorption by the kidneys and maintains water balance. It increases the permeability of the distal convoluted tubules and collecting ducts. ADH shortage limits water reabsorption, resulting in higher urine output.