Question

What mediates facilitated diffusion?

Answer 1

Diffusion:

1. Molecules are said to flow down their concentration gradient, flowing from an area of high concentration to an area of low concentration.
2. It is the transport of substances across a biological membrane in a concentration gradient.

Mediated facilitated diffusion:

1. This diffusion is mediated by carrier proteins and protein channels.
2. It transports polar or large particles.
3. It occurs through specific facilitator molecules.
4. It depends on the kinetics of carrier-mediated transport.
5. They move from a high-level concentration area to a low-level concentration area.