Facilitated Diffusion

Question 1

What type of process is it?

Answer 1

Passive process- doesn’t use energy

Question 2

How do larger molecules move into or out of the cell?

Answer 2

By carrier proteins down their concentration gradient

Different carrier proteins facilitate the diffusion of different molecules

Question 3

What is the Carrier protein process?

Answer 3

Large molecule attaches to a carrier protein in the membrane
Protein changes shape
This releases the molecule on the opposite side of the membrane

Question 4

What do channel proteins Do?

Answer 4

Form pores in the membrane for charged particles to diffuse through
Different channel proteins facilitate the diffusion of different charged particles

Question 5

What is it?

Answer 5

Larger molecules, ions and polar molecules diffuse through carrier proteins or channel proteins in the cell membrane
Moves down a concentration gradient from a higher to a lower concentration