Biology - Fighting diseas

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  • Created by: Zoe
  • Created on: 26-05-14 11:33
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  • Biology - Fighting Disease
    • Bacteria
      • Very small cells
      • Damage your cells
      • Produce toxins
      • Mutate to be antibiotic resistant
        • Drugs
          • Painkillers ONLY relieve symptoms
          • Antibiotics kill Bacteria
            • Grown in culture medium - agar jelly
        • Eg MRSA
        • Doctors prescribe LESS antibiotics
    • Viruses
      • Not cells
      • Invade cells and make copies of themselves
      • Cause cell to burst
    • Skin, hairs & mucus stop entering the body
    • Platelets seal wounds
    • Immune system: white blood cells
      • Engulf and digest foreign cells
      • Produce antibodies
        • Proteins
        • Specific to antigen
        • Kill bacteria & viruses
      • Produce antitoxins
    • Vaccination
      • Inject dead or damaged pathogens
      • Pros
        • Control infectious diseases Eg. Smallpox
        • Prevent epidemics - herd immunity
      • Cons
        • Don't always give immunity
        • Bad reaction
    • Drugs
      • Painkillers ONLY relieve symptoms
      • Antibiotics kill Bacteria
        • Grown in culture medium - agar jelly
    • Ignaz Semmelweis
      • Vienna - Childbirth - hand washing

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