CELL MEMBRANES
THE FUNCTION OF CELL MEMBRANES
PHOSPHOLIPIDS: The “Backbone” of the Membrane
WATER MOLECULES ARE POLAR
Water is a good solvent for polar molecules and ions
PHOSPHOLIPIDS
MIXING PHOSPHOLIPIDS AND WATER: Spontaneous Self-Organization
Phospholipids plus water make a self-organizing system
PPT Slide
The Black Lipid Membrane (BLM)
Permeability of the BLM mol/sec-sq. cm.
The Black Lipid Membrane Could be used to Show what else is in Cell Membranes
The membrane is fluid
Cholesterol sits between fatty tails
Proteins can span the bilayer
The fluid-mosaic model
Channels and carriers are needed to get ions across the bilayer
Cell Membranes Become Network Elements in Tissue Membranes
An Epithelial Membrane in Cartoon Form:
A Network Model of Coupled Salt and Volume Flow Through an Epithelium
What to do now?
Email: mikulecky@gems.vcu.edu
Home Page: http://views.vcu.edu/~mikuleck/
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