intro

• function
• intracellular fluid
• interstitial fluid
• extracellular fluid
• plasma

diseases caused by membrane failure

• CF
• cholera

the fluid mosaic model

• key factor in the evolution of the cell
• significance of development of internal membranes
• what does this model propose?
• lipids in biological membranes
• what are membranes composed of?
• why do proteins move slower compared to lipids?
• what happens when the lipid or protein links to a carbohydrate?
• what does the plasma membrane do?
• membrane asymmetry
• hormones and growth factors