Absorption of glucose from the gut lumen depends on
A)the sodium-potassium pump in the basolateral membrane of the epithelial cell.
B)cotransporter proteins in the apical membrane of the epithelial cell.
C)higher sodium ion concentration in the lumen than in the epithelial cell.
D)sodium-linked cotransport.
E)All of the answers are correct.

Question

Quizplus · Accepted Answer

Absorption of glucose from the gut lumen requires the presence of cotransporter proteins in the apical membrane of the epithelial cell, which use sodium-linked cotransport to move glucose across the membrane. This process is driven by a higher concentration of sodium ions in the lumen than in the epithelial cell, and ultimately depends on the functioning of the sodium-potassium pump in the basolateral membrane of the cell. Therefore, all of the choices given are correct.

Absorption of Glucose from the Gut Lumen Depends on