Urine Formation
Which of the following would help in prevention of diuresis?
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About This Question
- Subject
- biology
- Chapter
- excretory products and their elimination
- Topic
- urine formation
- Difficulty
- Hard
- Year
- 2025
Solution
Correct Answer:
Reabsorption of Na+ and water from renal tubules due to aldosterone
- Definition: Diuresis is the excessive production of urine. Prevention involves increasing water reabsorption.
- RAAS Pathway: A fall in glomerular blood pressure/GFR activates JG cells to release renin, leading to the production of Angiotensin II and then Aldosterone.
- Aldosterone Action: It acts on the distal tubules to increase the reabsorption of Na+ and water.
- Conclusion: By increasing water reabsorption, aldosterone reduces urine volume and thus prevents diuresis.
This hard difficulty biology question is from the chapter excretory products and their elimination, covering the topic of urine formation. It appeared in the 2025 exam.
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