Which statement with regards to vasopressin is correct? A) It can completely halt urine production during periods of water deprivation to conserve water for the body. B) It activates the cyclic AMP second-messenger system within the tubular cells. C) It renders the distal and collecting tubules impermeable to water. D) It increases Na⁺ reabsorption by the distal portions of the nephron.

Question

Quizplus · Accepted Answer

Vasopressin, also known as antidiuretic hormone (ADH), activates the cyclic AMP second-messenger system in the cells of the kidney's collecting ducts, increasing their permeability to water and thus promoting water reabsorption.

Which Statement with Regards to Vasopressin Is Correct