Question

Identify the CORRECT statement.

Options

• The ascending limb of the loop of Henle is impermeable to water.

• The descending limb of the loop of Henle is impermeable to water.

• Both limbs of the loop of Henle are permeable to water but impermeable to electrolytes.

• Both limbs of the loop of Henle are permeable to electrolytes but impermeable to water.

Answer 1

The ascending limb of the loop of Henle is impermeable to water.

Explanation:

The descending limb of the Henle loop is permeable to water but not to electrolytes. While the ascending leg of the Henle loop is impervious to water and permeable to electrolytes, the lower limb is not.