Question

What is the similarity between simple diffusion and facilitated diffusion?
A. Both move molecules from lower concentration to higher concentration.
B. Both move molecules from higher concentration to lower concentration.
C. Both need energy.
D. Both need transport protein.

Answer 1

Answer:

They both work with the concentration gradient which means they go from a high concentration area to a low concentration area. The differences are simple diffusion just goes though the membrane of a cell while facilitated diffusion uses a protein channel.