Cell Membranes and Signalling 0.0 / 5 ? BiologyBiological MembranesASOCR Created by: JasmineCreated on: 19-02-16 14:55 Cell Signalling Cells need to communicate with each other- control processes and respond to the environment Communicate through cell signalling Messenger molecules used to signal Cell signalling starts once messenger molecule is released It is then detected when it bings to a receptor Binding is what triggers a change to the cell 1 of 3 Membrane Receptors Proteins in the cell membrane act as the receptor Receptor proteins- membrane-bound receptors They have specific shapes They are complementary so they can bind Different cells have different receptors that respond to different messenger molecule A cell that responds to a particular messenger molecule is called a target cell 2 of 3 Drugs Bind to the receptors on cell membranes Trigger a response in the cell or block the receptor The receptors can be used as sites for targeted action 3 of 3
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