Q. Given below are two statements: Statements 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 fropm the options given below:
A) Statement I is true but Statement II is false.
B) Statement I is false but Statement II is true.
C) Both Statement I and Statement II are true.
D) Both Statement I and Statement II are false.
Explanation
[Solution by Claude - not from source] The descending limb is permeable to water and nearly impermeable to electrolytes, so I is false. NCERT describes the PCT as simple cuboidal brush-border epithelium, so II is false. (Medium confidence: II depends on wording.) Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.