2011Cell biology - Review

2011Cell biology - Review - Reading Assignment Reading...

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Reading Assignment • Reading Assignment 1 - Article on the Website • Chapters 1 and 2 (pages 17-29) in your textbook.
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Eukaryotic Cells
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The Eukaryotic Cell • Membrane enclosed compartments - The Plasma Membrane - Compartmentalized Functions • Other cell organelles – Golgi, Mitochondria, Endoplasmic reticulum and Nucleus • The Cell cytoskeleton • Signal Transduction and Cell activation – Endocytosis and phagocytosis – Release of cytokines
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Membranes – composition and function • Membranes are composed of a lipid bilayer (phospholipids, cholesterol, sphingolipids) and proteins. Also carbohydrates linked to both proteins and lipids • Plasma membrane: - – Provides a selective permeable barrier – Transports solutes, – Responds to external signals, • Other membranes in cell – ensure compartmentalization – are the locus of biochemical activities – also in energy transduction
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Cell Membranes Fluid-mosaic model (Singer and Nicolson) Davison-Danielli model
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Membranes – cont’d • Membrane proteins can be grouped in three distinct classes: Integral proteins span the membrane (transmembrane proteins). Includes receptors, integrins, transporters and ion channels Peripheral proteins are associated by non covalent bonds to membrane but located entirely outside of lipid bilayer. Includes cytoskeletal proteins, signal
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This note was uploaded on 11/21/2011 for the course ZOO 4232 taught by Professor Kima during the Fall '10 term at University of Florida.

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2011Cell biology - Review - Reading Assignment Reading...

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