Biology · Human Excretory System
What is the primary physiological advantage of the long tubular structure of a nephron?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It has no advantage because selective filtration occurs only at the cup-shaped end.
- 2It allows the nephrons to be tightly coiled to provide structural firmness to the kidney.
- 3It ensures that different nephrons can have varying lengths while remaining fully functional.
- 4It provides sufficient time and surface area for the re-absorption of water and useful solutes from the initial filtrate.✓
Correct answer
It provides sufficient time and surface area for the re-absorption of water and useful solutes from the initial filtrate.
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