Question

Which phrase best define diffusion?

A. Movement through a cell membrane using energy from ATP

B. movement of particles from a region of low concentration to a region of high concentration

C. movement of particles from a region of high concentration to a region of low concentration

D. Active transport of particles up a concentration gradient

Answer 1

answer B

Step-by-step explanation:

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

Answer 2

B

Step-by-step explanation:

definitely B its right im sure