Which of the following statements concerning solute movement in the loop of Henle is true?

A) Only Na⁺ diffuses from the descending limb.
B) Solutes are actively transported from the ascending limb.
C) Na⁺ and Cl⁻ ions are actively transported into the vasa recta.
D) The osmolality of the descending limb decreases as filtrate moves through.
E) Water moves by osmosis out of the ascending loop.

Ascending Limb

Part of the loop of Henle in the nephron of the kidney, involved in the reabsorption of water and solutes to concentrate urine.

Solute Movement

Solute movement refers to the process of dissolved substances moving from an area of high concentration to an area of low concentration, often through diffusion or active transport mechanisms.

Loop of Henle

A U-shaped tube in the nephron of the kidney that plays a critical role in concentrating urine and conserving water.