Which part of the nephron is primarily involved in the reabsorption of glucose and amino acids? MCQ with Answer and Explanation

Which part of the nephron is primarily involved in the reabsorption of glucose and amino acids?
A. Collecting duct
B. Proximal convoluted tubule
C. Loop of Henle
D. Distal convoluted tubule
Answer: Option B
Solution (By JKSSB Mock Tests)
The proximal convoluted tubule (PCT) reabsorbs about 70-80% of electrolytes and water, and almost 100% of glucose, amino acids, and vitamins back into the blood via active transport and facilitated diffusion. The loop of Henle concentrates urine, the DCT reabsorbs sodium and water under hormonal control, and the collecting duct reabsorbs water (ADH-dependent). PCT cells have microvilli for increased surface area.

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