Given
- AIn the nephron, the descending limb of the loop of Henle is impermeable to water and permeable to electrolytes.
- BThe proximal convoluted tubule (PCT) is lined by simple columnar brush border epithelium, which increases the surface area for reabsorption.
Solution & Step-by-step Explanation
Statement I is false: The descending limb is permeable to water but almost impermeable to electrolytes.Statement II is false: PCT is lined by simple cuboidal brush border epithelium, not columnar.