Question

1. what is diffusion? what function does diffusion have in the cell?

Explanation:

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. In cells, it helps in the exchange of substances like oxygen (entering the cell) and carbon dioxide (leaving the cell) across the cell membrane. It is a passive process (no energy input required) that aids in maintaining cellular homeostasis.

Answer:

Diffusion is the movement of molecules from high to low concentration. In cells, it helps in substance exchange (e.g., oxygen in, carbon dioxide out) and maintaining homeostasis.