Cell Membranes Osmosis and Diffusion. Functions of Membranes 1. Protect cell 2. Control incoming and outgoing substances 3. Maintain ion concentrations.
Cell Membranes Osmosis and Diffusion Visi t ww w.w orld ofte ach ing. co m For 100 s of free po wer poi nts.
Membrane Transport. 3 Types of transport Passive Transport Simple diffusion –Small non-polar molecules No ions –Examples: Fatty acids Steroids CO 2 O.
Cellular Transport Movement of Materials In and Out of a Cell.
