Glucose is transported from the intestinal lumen into epithelial cells through and from the intestinal epithelium into circulation by .

Question

Quizplus · Accepted Answer

Glucose is transported from the intestinal lumen into epithelial cells through cotransport with sodium, utilizing the sodium gradient established by the Na+/K+ ATPase pump. This process does not directly use ATP at the site of glucose entry, making it secondary active transport, but it is often referred to as cotransport with sodium. From the intestinal epithelium into circulation, glucose moves by facilitated diffusion through glucose transporters, as the concentration gradient allows for passive movement into the blood.

Glucose Is Transported from the Intestinal Lumen into Epithelial Cells