Antibiotics and Their Mechanisms Quiz
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Questions and Answers

What is the primary action of antibiotics that inhibit protein synthesis?

  • They interfere with nucleic acid synthesis.
  • They bind to ribosomal subunits, halting protein production. (correct)
  • They prevent the assembly of ribosomes.
  • They disrupt cell wall formation.
  • Which class of antibiotics specifically targets the synthesis of folic acid in bacteria?

  • Macrolides
  • Aminoglycosides
  • Quinolones
  • Sulfonamides and trimethoprim (correct)
  • How do nucleic acid synthesis inhibitors affect bacteria?

  • They interfere with protein synthesis through ribosomal action.
  • They alter the structural integrity of the cell wall.
  • They inhibit folic acid production essential for metabolism.
  • They disrupt DNA and RNA synthesis, inhibiting replication. (correct)
  • Which of the following antibiotics is classified as a protein synthesis inhibitor?

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

    Which statement about sulfonamides and trimethoprim is true?

    <p>They target distinct enzymes in the folic acid pathway.</p> Signup and view all the answers

    Which process is directly targeted by antibiotics such as Sulfonamides and Trimethoprim?

    <p>Folic acid synthesis</p> Signup and view all the answers

    How do antibiotics typically affect bacterial cells without harming human cells?

    <p>They target processes specific to bacteria that humans do not utilize.</p> Signup and view all the answers

    What is the result of antibiotics inhibiting the folic acid synthesis pathway in bacteria?

    <p>Decreased bacterial metabolism and growth</p> Signup and view all the answers

    In the context of antibiotic action, what role do enzymes play in bacterial cells?

    <p>They catalyze essential metabolic reactions.</p> Signup and view all the answers

    Why are antibiotics ineffective against human cells?

    <p>Human cells have a different set of metabolic pathways.</p> Signup and view all the answers

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