Communication and Cell Signalling

Revision mind map on communication and Cell Signalling for AS Biology Students Unit 1 Exam

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  • Communication and Cell Signalling
    • Hormone Receptors
      • Inslulin Receptor
        • Insulin is released from Beta Cells in the pancreas in response to increased blood levels
        • Protein Molecule that attaches to Inslulin receptors on the Plasma membrane
        • When Insulin attaches to its receptor it triggers internal responses in the cell that lead to more Glucose channels being present in the membrane
      • Medicinal Drugs - Interfearing with receptors
        • A Number od Medicinal drugs have been developed that are complimentary to the shape of a receptor molecule
        • Block Receptors, Beta-Blockers are used to preven heart muscle from increasing the heat rate in people. Some drugs mimic a neurotransmitter that some inderviduals cannot produce
      • Hijackinjg Receptors
        • Viruses enter cells by binding with receptros on the cells plasma membrane. They have a shape that fits into a receptor, it will reproduce inside the cell (by using the cell DNA)  and eventually distroy it.
    • Defintion
      • Cells communicate with one another by signals. Many molecules act as signals - Some signal during processes taking place inside cells; others signal from one cell to another
    • Cells may signal to white Blood Cells so they are not destroyed by the cell. Glycoproteins perform this job!
  • Viruses enter cells by binding with receptros on the cells plasma membrane. They have a shape that fits into a receptor, it will reproduce inside the cell (by using the cell DNA)  and eventually distroy it.

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