plasma membrane

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Author:
jessica1111
ID:
264736
Filename:
plasma membrane
Updated:
2014-03-02 17:45:35
Tags:
plasma membrane
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Description:
plasma membrane
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  1. hydrophobic tail
    water fearing pointed inward

    makes lipids insoluble in water
  2. hydrophilic head
    water loving pointed inward
  3. phospholipid bilayer
    helps maintain the internal environment of a cell by controlling the substances that move across the membrane
  4. cholesterol
    acts as stabilizers to prevent extensive lateral movement of the lipid molecules
  5. proteins(integral/peripheral)
    provide binding sites for hormones, recognition markers for identifying cells, adhesive mechanism for binding adjacent cells to each other, and channels for transporting materials across the plasma membrane
  6. function of cell membranes
    regulates cell volume to control internal osmolarity

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