Cell membrane
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| Submitted: Sun Aug 17 2003
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Biology Essay - Cell membrane a) Describe structure of cell membrane. b) Discuss how the structure of the membrane is related to its function for transport of materials across it (fat soluble, water soluble). c) Discuss briefly how prokaryotes and eukaryotes differ from one another with respect to the proportion of membrane present in these cells. a) (Fluid mosaic model) The cell membrane has a lipid bilayer (also known as a phospholipid bilayer) with a consistency similar to olive oil studded with a mosaic of globular proteins. Some of the proteins penetrate through and are found on both sides of the lipid bilayer whereas others are on one side or another. The lipid molecules are polarised which results in the non-polar tails facing inwards on each other and the polar heads facing outwards towards the outside or inside of the cell. Also, found on the outer layer is glycocalyx, containing glycolipids and glycoproteins....


