Most of the glucose is absorbed in the epithelial cells of the small intestine by A)simple diffusion. B)secondary active transport with Na^+. C)osmosis. D)phagocytosis.

Question

Quizplus · Accepted Answer

Glucose is absorbed in the epithelial cells of the small intestine by secondary active transport with Na^+.. This is because the concentration of glucose is higher in the lumen of the intestine than in the epithelial cells, which makes it a low to high concentration gradient that requires active transport. Na+ is pumped out of the cell, making its concentration higher in the lumen, while glucose is co-transported into the cell along with the sodium ion.

Most of the Glucose Is Absorbed in the Epithelial Cells