The ascending limb of the loop of Henle is impermeable to ____ and actively pumps ____ into the interstitial fluid.
A)water; sodium
B)protein; water
C)sodium; urea
D)hydrogen ions; sodium
E)urea; protein

Question

​The ascending limb of the loop of Henle is impermeable to ____ and actively pumps ____ into the interstitial fluid.
A)​water; sodium
B)​protein; water
C)​sodium; urea
D)​hydrogen ions; sodium
E)​urea; protein

Quizplus · Accepted Answer

The ascending limb of the loop of Henle is impermeable to water, meaning water cannot pass through it by osmosis. It actively pumps sodium (Na+) into the interstitial fluid, contributing to the osmotic gradient necessary for water reabsorption in other parts of the nephron.

​The Ascending Limb of the Loop of Henle Is Impermeable

The Ascending Limb of the Loop of Henle Is Impermeable