Microbiology Quiz: Antibiotics and Bacteria
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Questions and Answers

Which mechanism does chloramphenicol act on?

  • Cell wall
  • Protein synthesis sites (correct)
  • Metabolic pathways inhibition
  • DNA synthesis inhibition
  • Campylobacter jejuni is considered?

  • Anaerobic bacteria
  • Microaerophilic (correct)
  • Aerobic
  • Facultative
  • Which antibiotic does not work by binding the 50S ribosomal subunit?

  • Tedizolid
  • Erythromycin
  • Clarithromycin
  • Streptomycin (correct)
  • Which penicillin antibiotic must be taken by injection?

    <p>Oxacillin</p> Signup and view all the answers

    Which of the following is not an antistaphylococcal penicillin?

    <p>Piperacillin</p> Signup and view all the answers

    Kanamycin is produced by which bacteria?

    <p>Actinomycetes</p> Signup and view all the answers

    The original compound isolated from Streptomyces lactamdurans is a derivative of?

    <p>Actinomycetes</p> Signup and view all the answers

    Which of the following antibiotics is a fifth-generation cephalosporin?

    <p>Ceftaroline</p> Signup and view all the answers

    Study Notes

    Cephalosporinase and Chloramphenicol Acetyltransferase

    • Cephalosporinase is a type of β-lactamase.
    • Chloramphenicol acetyltransferase is an enzyme that inactivates chloramphenicol.

    Bacteria and Antimicrobials

    • Campylobacter jejune is a microphilic bacteria.
    • Chloramphenicol acts by inhibiting protein synthesis.
    • Antibiotics can inhibit bacterial growth by targeting the cell wall, DNA synthesis, or metabolic pathways.

    Antibiotic Mechanisms

    • Streptomycin, Clarithromycin, and Tedizold work by binding to the 50S subunit.
    • Penicillinase-resistant penicillins include Oxacillin and Dicloxacillin.
    • Antistaphylococcal antibiotics include Oxacillin, Dicloxacillin, and Nafcillin.

    Antibiotic Sources

    • Kanamycin is produced by Streptomyces bacteria.
    • Cephalosporins are derived from the fungus Cephalosporium lactamdurans.

    Antibiotic Generations

    • Cephamycins are a type of antibiotic.
    • Cefepime and Ceftazidime are fifth-generation cephalosporins.
    • Ceftaroline is a fifth-generation cephalosporin.

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    Description

    Test your knowledge of antibiotics and bacteria with this quiz, covering topics such as chlorophenecol, bacterial types, and antibiotic mechanisms.

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