PHOSPHOLIPIDS: The “Backbone” of the Membrane

7/11/00


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Table of Contents

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

MIXING PHOSPHOLIPIDS AND WATER: Spontaneous Self-Organization

MIXING PHOSPHOLIPIDS AND WATER: Spontaneous Self-Organization

MIXING PHOSPHOLIPIDS AND WATER: Spontaneous Self-Organization

Phospholipids plus water make a self-organizing system

PPT Slide

The Black Lipid Membrane (BLM)

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

The membrane is fluid

The membrane is fluid

The membrane is fluid

Cholesterol sits between fatty tails

Proteins can span the bilayer

The fluid-mosaic model

The fluid-mosaic model

Channels and carriers are needed to get ions across the bilayer

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?

Author: D. C. Mikulecky

Email: mikulecky@gems.vcu.edu

Home Page: http://views.vcu.edu/~mikuleck/

 

 

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