The process describing the spread of molecules from high to low concentration until equilibrium is reached is called?

The process describing the spread of molecules from high to low concentration until equilibrium is reached is called?

• A. Diffusion
• B. Osmosis
• C. Active transport
• D. Filtration

Answer: (A)

Diffusion is the passive movement of molecules from regions of higher concentration to regions of lower concentration due to their random motion. This spread continues until the concentrations are equal on both sides, reaching equilibrium, and it requires no energy. Osomosis involves water moving across a membrane, active transport uses cellular energy to move substances against a gradient, and filtration is driven by pressure differences. The described process matches diffusion.

Diffusion is the passive movement of molecules from regions of higher concentration to regions of lower concentration due to their random motion. This spread continues until the concentrations are equal on both sides, reaching equilibrium, and it requires no energy. Osomosis involves water moving across a membrane, active transport uses cellular energy to move substances against a gradient, and filtration is driven by pressure differences. The described process matches diffusion.