Question

Passive diffusion and random diffusion differences

Answer 1

Answer:

Diffusion is random movement of molecules but has a net direction toward regions of lower concentration in order to reach an equillibrium. Simple passive diffusion occurs when small molecules pass through the lipid bilayer of a cell membrane. ... We can also compare simple and facilitated diffusion.

Answer 2

Answer:

There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done