ADH increases the permeability of the distal convoluted tubules and collecting ducts by A) incorporating aquaporin-3 channels into the apical membrane. B) increasing the number of Na⁺− transport proteins in the membranes. C) incorporating aquaporin-2 channels into the apical membrane. D) decreasing the number of aquaporin-4 channels in the apical membrane.

Question

Quizplus · Accepted Answer

ADH (antidiuretic hormone) increases water reabsorption in the kidneys by incorporating aquaporin-2 channels into the apical membrane of the distal convoluted tubules and collecting ducts, enhancing their permeability to water.

ADH Increases the Permeability of the Distal Convoluted Tubules and Collecting