Fructose uptake in small intestine is via-: (A) Passive diffusion, (B) Facilitated diffusion, (C) Primary active transport, (D) Secondary active transport
Answer is B. Ans. (b) Facilitated diffusion(Ref: Ganong, 25th ed/p.477)Fructose is absorbed from intestinal lumen into the enterocytes by GLUT5 and out of the enterocytes into the interstitium by GLUT2This type of transport is an example for facilitated diffusion