Transportsep2011t

Transportsep2011t - The acellular material around cells is...

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Unformatted text preview: The acellular material around cells is called extracellular matrix (ECM) ECM: Definition and Function 1)Mechanical support for cells and tissues. Attaches to cells by proteins called integrins 2) Integrates cells into tissues. 3)Influences cell shape and cell . ECM Composition Proteins collagen and elastin and glycoproteins Gel like material Ground Material Extracellular Environment 67% of total body H 2 O is inside cells (= intracellular compartment ) 33% is outside cells (= extracellular compartment-ECF ) 20% of ECF is blood plasma 80% of ECF is interstitial fluid contained in gel-like matrix Extracellular Matrix and Circulation 6-5 Transport Across Plasma Membrane Plasma membrane is selectively permeable--allows only certain kinds of molecules to pass Molecules pass through the membrane by: Carrier-mediated transport involves specific protein transporters a)Facilitated transport b) Active transport Non-carrier mediated transport occurs by diffusion Protein mediated Diffusion Membrane Structure Phospholipids Cholesterol Proteins...
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This note was uploaded on 03/27/2012 for the course HEALTH 350 taught by Professor Cooper during the Spring '12 term at MO St. Louis.

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Transportsep2011t - The acellular material around cells is...

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