Final answer:
Facilitated diffusion is a form of passive transport where molecules or ions move across a membrane through specific transmembrane proteins. The direction of transport is from an area of higher concentration to an area of lower concentration.
Step-by-step explanation:
Facilitated diffusion is a form of passive transport where molecules or ions move across a membrane through specific transmembrane proteins.
In this process, the direction of transport is from an area of higher concentration to an area of lower concentration. This movement occurs down the concentration gradient and does not require energy.