BIOL 1000 Chapter Notes - Chapter 5: Osmosis

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8 Jan 2014
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Uptakes nutrients, and eliminates waste: fluid mosaic model, proteins with mixture of lipids and cholesterol, responsible for, transport, signal transduction, electron transport chain, some membrane proteins anchor cytoskeleton filaments to membrane, cytoskeleton binds on inside of proteins, while glycolipids and glycoproteins are attached to the outside of the cell, along with hormones, membranes are fluid, michael a edidin, fused human and mouse cell together and dyed the membrane proteins two different colours, after some time proteins moved around, and membrane appeared to be a mixture of the two different colours, membrane asymmetry, used freeze and fracture technique to break cell in half, and discovered the interior and exterior where not symmetrical. 4 main functions: transport, provide hydrophilic channels for movement of molecules, or change shape to allow transport, signal transduction, contain receptor proteins on the outside that bind to specific chemicals and hormones, triggers changes on the inside of the cell, enzyme activity, attachment recognition, internal and peripheral.

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