Absorption mechanisms · Physiology

Fructose is absorbed from the intestine mainly by:

  1. Sodium-dependent co-transport
  2. Active transport using ATP
  3. Facilitated diffusion
  4. Simple diffusion
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Correct answer: Facilitated diffusion

Fructose absorption occurs via facilitated diffusion using the GLUT5 transporter. It does not require sodium or ATP.

Difficulty: Medium Question 3 of 40

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