Bacterial Classification and Antibiotics Quiz
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Questions and Answers

What are MRSA and Staphylococcus aureus examples of in the given text?

  • Gram-positive bacteria (correct)
  • Bacteria susceptible to penicillin
  • Gram-negative bacteria
  • Bacteria releasing endotoxins
  • Which antibiotics work on both gram-positive and gram-negative bacteria according to the text?

  • Tetracycline (correct)
  • Penicillin
  • Escherichia coli
  • MRSA
  • What is the most common sexually transmitted infection, as per the given text?

  • MRSA
  • Staphylococcus aureus
  • TB
  • Chlamydia (correct)
  • How is TB (mycobacteria) identified using staining, based on the information provided?

    <p>By remaining red despite exposure to acid</p> Signup and view all the answers

    What is the main purpose of the test mentioned in the text?

    <p>To see if tuberculosis (TB) is present</p> Signup and view all the answers

    What are the proteins responsible for producing proteins inside cells?

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

    What fluid is referred to as gelatinous in the text?

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

    Which bacteria does the text describe as having a sugar coating on the outside?

    <p>Gram-positive bacteria</p> Signup and view all the answers

    What is the term used interchangeably with 'cell wall' in the text?

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

    What feature helps distinguish gram-positive bacteria from gram-negative bacteria?

    <p>Outer membrane</p> Signup and view all the answers

    Which type of bacteria is susceptible to penicillin, as per the given text?

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

    What is the primary purpose of the acid-fast stain mentioned in the text?

    <p>To identify TB (mycobacteria)</p> Signup and view all the answers

    What happens when aggressive gram-negative bacteria die, according to the text?

    <p>They release endotoxins from the outer membrane</p> Signup and view all the answers

    Why is prescribing tetracycline effective for a male complaining of a burning sensation when peeing, as per the information provided?

    <p>It neutralizes endotoxins released by gram-negative bacteria</p> Signup and view all the answers

    What is the function of teichoic acid in gram-positive bacteria?

    <p>It provides protection against antibiotics and macrophages.</p> Signup and view all the answers

    Why do some antibiotics target ribosomes?

    <p>To stop the production of proteins in bacteria.</p> Signup and view all the answers

    What makes it difficult to treat bacteria with a sugar coating on the outside?

    <p>The presence of high negative charge</p> Signup and view all the answers

    Why is the presence of an outer membrane used to distinguish between gram-positive and gram-negative bacteria?

    <p>It makes it hard for antibiotics to penetrate the bacteria.</p> Signup and view all the answers

    What feature of gram-positive bacteria causes crystal violet to stick well with them?

    <p>The presence of teichoic acid</p> Signup and view all the answers

    Why does ampicillin go right through gram-positive bacteria?

    <p>The absence of an outer membrane</p> Signup and view all the answers

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