Absorption of glucose from the gut lumen depends on
A) cotransporter proteins in the apical membrane of the epithelial cell.
B) the sodium- potassium pump in the basolateral membrane of the epithelial cell.
C) higher sodium ion concentration in the lumen than in the epithelial cell.
D) A and B only
E) A, B, and C

Question

Quizplus · Accepted Answer

Glucose absorption from the gut lumen is an active process that requires the cotransport of glucose with sodium ions. The sodium-potassium pump in the basolateral membrane of the epithelial cell creates a sodium ion gradient that drives the cotransport of glucose. A higher sodium ion concentration in the lumen than in the epithelial cell is also necessary for glucose absorption.

Absorption of Glucose from the Gut Lumen Depends on