Question

A substance that moves across a cell membrane without using the cell’s energy tends to move___________. a toward the area where it is more concentrated b away from the area of equilibrium c away from the area where it is more concentrated d away from the area where it is less concentrated

Answer 1

A substance that moves across a cell membrane without using the cell’s energy tends to move **c away from the area where it is more concentrated**. This process is known as diffusion, where substances naturally move from areas of higher concentration to areas of lower concentration until equilibrium is reached.