Page 8 - Osmosis and Diffusion - FULL
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        Cell Membrane


        Each cell is surrounded by a cell membrane which provides structure and controls the
        passage of materials between the cell and its environment.






                   C    M
                       cell membrane






























           Inside Cell


                                                                                   Cell Membrane

                                                                                   Composition

                                                                                   A cell membrane consists

                                lipid bilayer                                      of two layers composed of
                                                                                   proteins and lipids.







                    carbohydrate                       transport protein


                                                         Outside Cell






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