As a result of diffusion the concentration of many types of substance eventually become balanced on both sides of the membrane.
b.)eventually becomes balanced on both side of a membrane.
Explanation:
Diffusion is the process by which substances move from a region of high concentration to low concentration. It is crucial in several biological processes and is a form of passive transport. Since the movement is down the concentration gradient, passive transport doesn’t require any energy.
When there exists a difference in concentration between the substances inside and outside a membrane the diffusion of substances through the membrane begins. The diffusion continues until the concentration of substances inside and outside of the membrane becomes balanced.