How does diffusion help a cell maintain homeostasis?

Diffusion is a fundamental process that contributes to a cell's ability to maintain homeostasis primarily through the following response:

**It helps maintain an equilibrium of particles inside and outside a cell.**

Diffusion allows substances such as gases (like oxygen and carbon dioxide) and other small molecules to move across the cell membrane down their concentration gradients, leading to a balance of concentrations inside and outside the cell. This equilibrium is crucial for various cellular functions and for the overall stability of the cell’s internal environment.

While the other responses highlight important functions of cells, the primary role of diffusion in maintaining homeostasis is related to the equilibrium of particle concentrations.