Most 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.

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Quizplus · Accepted Answer

Glucose is primarily absorbed by the epithelial cells of the small intestine through secondary active transport with Na^+.. This process is facilitated by the sodium-glucose transport protein 1 (SGLT1) which cotransports glucose along with sodium ions into the epithelial cells. From there, glucose is transported out of the cells by facilitated diffusion via glucose transporter 2 (GLUT2) and enters the bloodstream. Simple diffusion, osmosis, and phagocytosis are not involved in glucose absorption.

Most Glucose Is Absorbed in the Epithelial Cells of the Small