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

Given below are two statements :Statement I : In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.Statement II : The proximal convoluted tubule is lined by simple columnar brush border epithelium…

Given below are two statements :

Statement I : In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.

Statement II : The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.

In the light of the above statements, choose the correct answer from the options given below :

1. Statement I is false but Statement II is true

2. Both Statement I and Statement II are true

3. Both Statement I and Statement II are false

4. Statement I is true but Statement II is false

1 answer

Best answer

Answer: 3. Both Statement I and Statement II are false

  • Statement I is false. The descending limb of Henle's loop is permeable to water and almost impermeable to electrolytes. The statement reverses this.
  • Statement II is false. The PCT is lined by simple cuboidal brush border epithelium, not columnar.

Both false: option 3.

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