Which segment of the nephron has the lowest permeability to water?

Show Answers

The proximal convoluted tubuleThe descending portion of the loop of HenleThe ascending portion of the loop of HenleThe collecting duct

Explanation

The ascending limb of the loop of Henle is impermeable to water, unlike the proximal tubule and descending limb which allow water passage. This characteristic is essential for the kidney's ability to concentrate urine.