Which of the following transporters is responsible for the uptake of glucose and galactose across the apical membrane of the enterocyte against their concentration gradient?
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Correct answer: SGLT1
SGLT1 (Sodium-Glucose Linked Transporter 1) utilizes the sodium gradient created by the Na+/K+ ATPase to co-transport glucose or galactose into the cell. This is a primary example of secondary active transport in the small intestine.
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