Diagram of Cholesterol in Cell Membrane (image) University of Illinois at Chicago Share Print E-Mail Caption This is a diagram showing cholesterol's (red) predominance in the outer layer of the cell membrane. Cholesterol transport proteins (blue) can alter its distribution between the inner and outer layers. Credit UIC Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.