Antibiotics

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  • Antibiotics
    • Effective against bacterial cells but leave eukaryoticcells unharmed
    • Useless against viruses
    • How they disrupt bacterial cell growth & division
      • Inhibition of bacterial cell wall synthesis; if a weak wall forms = LYSIS
      • Disruption of the cell membrane causing changes in permeability = LYSIS
      • Inhibition of nucleic acid synthesis, replication& transcription which prevents the cell dividing/synthesising enzymes
      • Inhibition of  specific enzymes found in the bacterial cell wall
    • Bactericidal
      • Destroys bacteria
    • Bacteriostatic
      • Prevents bacteria multiplying

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