Which of the following would help in prevention of diuresis ?

1. More water reabsorption due to undersecretion of ADH

2. Reabsorption of Na\(^+\) and water from renal tubules due to aldosterone

3. Atrial natriuretic factor causes vasoconstriction

4. Decrease in secretion of renin by JG cells

Doubtly Asked 30 Oct 2026 NEET UG 2020 Practice test neet Save WhatsApp Report

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Answer: 2. Reabsorption of Na\(^+\) and water from renal tubules due to aldosterone

Diuresis is increased urine output. It is prevented when more water is retained.

Aldosterone promotes reabsorption of Na+ and water from the renal tubules, which reduces urine volume, so it helps prevent diuresis.

Undersecretion of ADH reduces water reabsorption and causes diuresis; the option is self-contradictory as worded.
ANF causes vasodilation, not vasoconstriction.
Less renin means less aldosterone and so more diuresis.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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