Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?

Facilitated diffusion is a process in which movement of the particles is facilitated in and out of the cell membrane by using two ways:

Channel protein

Carrier protein

Explanation:

Protein channels transport only water and certain ions by forming particular pores or passageways across the cell membrane. These channels are very selective and only open their gates when they receive a particular signal.

Proteins carriers which are called uniporters transport amino acids and sugar from higher concentration to lower concentration.

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