hard · MCAT bio-biochem
A patient presents with extreme dehydration. The body's homeostatic response involves the release of Antidiuretic Hormone (ADH) and Aldosterone.
Which of the following accurately describes the primary mechanism by which Aldosterone acts on the nephron to restore blood volume?
- It increases the permeability of the collecting duct to water by inserting aquaporins.
- It increases the expression of Na^+/K^+ pumps in the distal tubule, leading to osmotic water reabsorption.
- It inhibits the Na^+/Cl^- cotransporters in the Ascending Loop of Henle.
- It decreases the hydrostatic pressure in the glomerulus to reduce the glomerular filtration rate.
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