Topic: Excretion: modes, nephron, urine formation, osmoregulation· Human Physiology

The part of nephron involved in active reabsorption of sodium is

1. proximal convoluted tubule

2. Bowman's capsule

3. descending limb of Henle's loop

4. distal convoluted tubule

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Best answer

Answer: 1. proximal convoluted tubule

The proximal convoluted tubule (PCT) reabsorbs about 70 to 80 percent of the filtered Na⁺ (with water, glucose and amino acids), mostly by active transport using the Na⁺/K⁺ pump.

The Bowman's capsule only filters. The descending limb of the loop mainly allows water movement. The DCT does reabsorb some Na⁺, but the PCT is the main site, so option 1 is the best answer.

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

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The part of nephron involved in active reabsorption of sodium is

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