Solved UPSC CDS/OTA Question
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Q · Excretory Systemmedium · 45s
The process of glucose reabsorption in the proximal tubule occurs by:
TopicExcretory System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Glucose reabsorption involves secondary active transport, where Na⁺–glucose symporters on the luminal membrane use the Na⁺ electrochemical gradient to transport glucose into cells, followed by facilitated diffusion on the basolateral side into peritubular capillaries.
Final Answer: Option B - Facilitated diffusion and secondary active transport