During diffusion molecules move where?

Diffusion. Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell ... Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration.

have a great day!

From a region of higher concentration to a region of lower concentration.

Explanation:

Diffusion is a process where by molecules move from an area or a region of high concentration of the molecules to an area with a lower concentration without the aid of a permeable membrane.