Cell Membrane Structure Definitions 2.0 / 5 based on 1 rating ? BiologyCellular processes and structureASEdexcel Created by: Corrine SCreated on: 11-05-13 14:20 Cell Membrane A barrier that controls what goes in and out of the cell 1 of 9 Organelles Part of a cell 2 of 9 Vesicles Membrane bags that contain chemical secretions made by the cell 3 of 9 Polar Lipids A particular type of lipid molecule with one end joined to a polar group. Has +ve, -ve ends 4 of 9 Phospholipid A phosphate group forms the polar part of the molecule. The fatty acid chains of a phospholipid are neutral and insoluble in water 5 of 9 Hydrophilic Water loving, dissolves readily in water 6 of 9 Hydrophobic Water hating, insoluble in water 7 of 9 Bi-layer Two, Double layer 8 of 9 Micelle A spherical arrangement of phospholipid 9 of 9
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