In both diffusion and osmosis, molecules want to move in which direction?

a. from low concentration areas to high concentration areas

b. from empty areas to full areas

c. from high concentration areas to low concentration areas

d. from right to left

A.) From low concentration areas to high concentration areas

Diffusion is the net movement of particles from a region of higher concentration to a region of lower concentration down a concentration gradient.

Osmosis is the net movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane.

The answer is C.