Diffusion occurs because:

Question

Group of answer choices

molecules constantly move and collide with each other.

molecules are attracted to one another.

cellular energy forces molecules to collide with each other.

cellular energy pumps molecules across the cell membrane.

Answer 1

Diffusion occurs because:

molecules constantly move and collide with each other.

This movement leads to a net movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is reached.