The process of “diffusion” through a membrane may be described by which of the following? A. the movement of ions and molecules away from regions where they are in high concentration towards regions where they are in lower concentration. B. the use of energy from ATP to move ions and small molecules into regions where they are in lower concentration. C. the plasma membrane engulfs the substance and moves it through the membrane. D. the use of energy from ATP to move water molecules against their concen- tration gradient
Option A. The process of diffusion through a membrane may be describe as the movement of ions and molecules away from region where they are in high concentration towards regions where they are in lower concentration.
