2005_campbl07

2005_campbl07 - Chapter 7: Membrane Structure and Function...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Chapter 7: Membrane Structure and Function Important Point: Lipid Bilayer The ability of the cell to discriminate in its chemical exchanges with the environment is fundamental to life, and it is the plasma membrane that makes this selectivity possible. Fluid Mosaic Model History of Fluid Mosaic Model For more on this history, see: http://www1.umn.edu/ships/9-2/membrane.htm Movement of Phospholipids Membrane Fluidity Cholesterol: Temp. Buffer Cholesterol reduces membrane fluidity at moderate temperatures by reducing phospholipid movement, but at low temperatures it hinders solidification by disrupting regular packing of phospholipids. Campbell & Reece (2005) p. 126 Lateral Movement of Proteins Protein diffusion is not as fast as phospholipid diffusion Not all Proteins Move Proteins attached to cytoskeleton or ECM dont move Transmembrane Protein Know definition of transmembrane protein Note distinct orientation Membrane Proteins Membrane Protein Functions Membrane asymmetry allows cells to automatically differ their intracellular environment from that existing extracellularly Membrane Protein Functions Membrane Protein Trafficking Note the orientation of...
View Full Document

This note was uploaded on 06/03/2011 for the course BIO 113 taught by Professor Swenson during the Spring '08 term at Ohio State.

Page1 / 44

2005_campbl07 - Chapter 7: Membrane Structure and Function...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online