The Plasma Membrane and Cell Transport

Let us start by looking at a static picture of the membrane structure.

The following video is looking at the structure of the plasma membrane.

The following video is a good example of cellular transport. It looks at diffusion, fascilitated diffusion (what the video calls fascilitated transport)

http://www.youtube.com/watch?v=1ZFqOvxXg9M

A good description of osmosis, diffusion, fascilitated diffusion, and active transport.