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Membranes09 - Eukaryotic cells contain an extensive...

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Eukaryotic cells contain an extensive endomembrane system Figs. 3-3, 3-4
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Cell Membrane Structure Fig 3-6
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Membrane Lipids, Proteins and Carbohydrates Fig 3-7
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Amphipathic Transmembrane Proteins Fig 3-8
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Membrane Fluidity Fig 3-9 Proteins are able to diffuse laterally Lipid Rafts
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Tight Junctions and Gap Junctions Figs 3-10b, d Gap Junctions Tight Junctions
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Membrane Composition and Fluidity Composition Lipids Phospholipids Sphingolipids Cholesterol Proteins Integral Peripheral Carbohydrate (outside-facing) Glycoproteins Glycolipids Fluidity Lipids and proteins move laterally asymmetry (lateral and between leaflets) random collisions allow protein-protein interactions
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1 2 3 4 5 Transport Across Cell Membranes (Chapter 4) Simple Diffusion Diffusion via Pore Ion Channels Carrier- mediated Diffusion Active Transport Gradient
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Simple Diffusion Fig 4-1 Initial Equilibrium
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Passive Diffusion Across a Membrane: Two Special Cases Net Flux Co Ci 1. Substances diffusing
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