Cell Membranes and Signalling

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  • Created by: tiacoles
  • Created on: 01-02-16 16:39

Cell Signalling

  • Cells communicate to control processes inside the body and respond to changes in the environment.
  • Cell signalling uses messenger molecule.
  • It starts when one cell releases a messenger molecule (hormone)
  • This molecule travels to another cell (in the blood)
  • The messenger molecule is detected as it binds to a receptor on the cell membrane.
  • The binding then triggers a change in the cell (series of chemical signals are set off)

Membrane Receptors

  • Receptor proteins have specific shapes - only messenger molecules with


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