Contrast the effects of aldosterone and ADH on water reabsorption in the kidney. How are they similar and how do they differ?
What will be an ideal response?
Both hormones increase water reabsorption, but aldosterone increases sodium reabsorption by principal cells (through increased synthesis of sodium pumps and channels), whereas ADH increases water reabsorption near the end of the tubule by stimulating increased insertion of aquaporins into principal cell membranes.
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