What is the main difference between diffusion and facilitated diffusion?

What is the main difference between diffusion and facilitated diffusion?

In simple diffusion, molecules move down the concentration gradient but in facilitated diffusion molecules move up the concentration gradient. Simple diffusion is passive but facilitated diffusion is an active process that uses energy.

What is facilitated diffusion?

Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.

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What’s the difference between facilitated diffusion and osmosis?

Osmosis involves movement of water molecules across a semi permeable membrane. … On the other side; facilitated diffusion does not require water molecules for other molecules to transfer. A major difference can be noted that osmosis requires water molecules but facilitated diffusion does not require any water molecules.