Diffusion is the net movement of substances from an area of concentration to an area of___ concentration.
A) higher, lower
B) lower, higher
C) neither (there is no net movement)

Question

Quizplus · Accepted Answer

Diffusion occurs down the concentration gradient, which means from an area with higher concentration to an area with lower concentration. This results in a net movement of substances from an area of higher concentration to an area of lower concentration, making option A the correct answer.

Diffusion Is the Net Movement of Substances from an Area