248,204 views
10 votes
10 votes
How do simple diffusion and facilitated diffusion differ?

User Kennethc
by
3.2k points

1 Answer

16 votes
16 votes

Answer:

Simple diffusion does not require energy: facilitated diffusion requires a source of ATP. Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration gradient.

Step-by-step explanation: