Question:
SGLT1 is a ________.
SGLT1 is a ________.
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Think about the direction Na+ and glucose move relative to each other.
Updated On: Jul 4, 2026
- Symporter
- Co-transporter
- Uniporter
- Antiporter
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The Correct Option is A
Solution and Explanation
Step 1: SGLT1 (sodium glucose linked transporter 1) moves glucose across the membrane using the inward electrochemical gradient of Na+ ions.
Step 2: Both Na+ and glucose move in the same direction across the membrane, which is the defining feature of a symporter.
Step 3: A uniporter carries one solute alone and an antiporter moves two solutes in opposite directions, so neither fits SGLT1. Co-transporter is a broader umbrella term covering both symporters and antiporters, so symporter is the precise mechanistic answer.
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