Antimicrobial Agents Quiz
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Questions and Answers

What are antibiotics?

  • Chemical substances that kill or inhibit the growth of microorganisms produced by humans
  • Chemical substances that kill or inhibit the growth of microorganisms produced by plants
  • Chemical substances that kill or inhibit the growth of microorganisms produced by animals
  • Chemical substances that kill or inhibit the growth of microorganisms produced by other microorganisms (correct)
  • Which of the following is NOT a producer of antibiotics?

  • Virus (correct)
  • Actinomycetes
  • Fungi
  • Bacillus
  • Which of the following microorganisms is not a producer of antibiotics?

  • Actinomycetes
  • Bacteria
  • Fungi
  • Virus (correct)
  • What is the mode of action of antibiotics?

    <p>Inhibition of cell wall synthesis, protein synthesis, cell membrane, DNA/RNA synthesis</p> Signup and view all the answers

    Which antibiotic inhibits cell wall synthesis by binding to the last D-alanine?

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

    Which antibiotic inhibits cell wall synthesis through transpeptidation?

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

    Which antibiotic prevents peptide bond formation and is effective against obligate anaerobic bacteria?

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

    Which antibiotic prevents initiation of protein synthesis?

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

    Which antibiotic binds to the last D-alanine, stops removal by blocking enzymes?

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

    Which antibiotic prevents translocation?

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

    Which antibiotic binds to DNA and prevents replication and transcription?

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

    Which antibiotic distorts the phospholipid bilayer by altering the semi-permeability?

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

    Which antibiotic inhibits peptide bond formation and causes dissociation of polysome?

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

    Which antibiotic distorts the phospholipid bilayer by altering the semi-permeability?

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

    Which antibiotic causes anemia as a side effect?

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

    Which antibiotic binds with sterols in the cell membranes, especially for mycoplasmas?

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

    Which antibiotic causes decolorization of teeth as a side effect?

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

    Which antibiotic binds to DNA, prevents replication and transcription?

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

    Which antibiotic causes hearing problems as a side effect?

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

    Which antibiotic inhibits peptide bond formation and causes dissociation of polysome?

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

    Which antibiotic prevents DNA gyrase from uncoiling DNA?

    <p>Nalidixic acid</p> Signup and view all the answers

    Which antibiotic prevents tRNA, amino acids, and ribosomal binding?

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

    Which antibiotic inhibits RNA polymerase, therefore inhibits DNA replication and transcription?

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

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    Description

    Test your knowledge on antimicrobial agents used in therapy with this quiz! Learn about the different producers of antibiotics and their modes of action, including their ability to inhibit cell wall synthesis and protein synthesis. Perfect for anyone studying microbiology or interested in the medical field.

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