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Question

Which substance uses a carrier protein to cross the plasma membrane by facilitated diffusion?


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Solution

Carrier Protein :

These are the cell membrane proteins that help in facilitated diffusion and active transport of substances in and out of the cell.

Facilitated Diffusion:

  1. Facilitated Diffusion is a passive transport of Ions and molecules across the plasma membrane along the concentration gradient.
  2. It is a selective process that's why the membrane allows only selective ions and molecules to pass through it.
  3. Glucose uses a carrier protein to cross the plasma membrane by facilitated diffusion.
  4. common glucose transporters which help in glucose transfer are GLUTs.
  5. GLUTs are integral membrane protein


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