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The proteins in cell membranes do a variety of things like:

  1. Support for the cell by attaching to the ECM outside the cell and the cytoplasm inside the cell.
  2. Cell-to-cell recognition and communication.
  3. Proteins act as enzymes to catalyse reactions.
  4. Intercellular junctions (i.e. passive and active transport)
  5. Signal transduction.
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12y ago

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