The collecting ducts and distal convoluted tubules A) reabsorb glucose. B) collect filtrate from Bowman capsule. C) actively transport Na⁺ but not Cl⁻. D) vary in their permeability to water relative to the amounts of ADH present. E) do not alter their permeability to water.

Question

Quizplus · Accepted Answer

The collecting ducts and distal convoluted tubules vary in their permeability to water depending on the presence of antidiuretic hormone (ADH). When ADH levels are high, these structures become more permeable to water, allowing for greater water reabsorption back into the bloodstream, which concentrates the urine.

The Collecting Ducts and Distal Convoluted Tubules