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2 Written questions

2 Multiple choice questions

  1. Prevents cross-linking of peptides and synthesis of peptide strnd through autolysin activators. Does not allow enzyme to cross link peptide strands.

    Methicillin, Oxacillin, Nafcillin, Cloxacillin, Dicloxacillin
  2. Come from the fungus CephalosporiumAcremonium.

    Work by the same mechanisms as penicillin's; but work on gram (+), not effective against gram (-)

    Have beta-lactam ring with dihydrothiazine ring, makes more resistant to beta-lactamases

2 True/False questions

  1. VancomyocinInterferes with dephosphorylation of isoprenyl pyrophosphate; molecule carries peptidoglycan building blocks


  2. CycloserineCompetitively inhibits D-alanine ligase enzyme so cannot syntheses from L to D-alanine

    Don't have crosslinking if not have D-alanine at the end