The net movement of particles from an area of higher concentration to an area of lower concentration is known as diffusion. This process occurs because particles tend to spread out evenly in a given space. In biological systems, diffusion is a critical mechanism for the movement of substances, such as gases and nutrients, across cell membranes. It continues until there is an equal concentration of particles in the two areas, reaching a state of equilibrium.
what is a net movement of particles from an area of higher concentration
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