Bacteria Size and Observation Methods Quiz
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Questions and Answers

What is the typical length range of most bacteria mentioned in the text?

  • 0.2 um - 0.5 um
  • 2 um - 8 um
  • 0.1 um - 0.25 um
  • 0.5 um - 5.0 um (correct)
  • Which type of microscope is required to observe the internal structure of bacteria as per the text?

  • Transmission electron microscope (correct)
  • Scanning electron microscope
  • Light microscope
  • Phase-contrast microscope
  • Which bacteria mentioned in the text are visible to the unaided eye due to their large size?

  • Staphylococcus aureus
  • Mycoplasma
  • Titanospirillum namibiensis (correct)
  • E. coli
  • What is the approximate size comparison between bacterial cells and eukaryotic cells?

    <p>Bacterial cells are smaller than eukaryotic cells</p> Signup and view all the answers

    Which bacteria mentioned are among the smallest, with dimensions comparable to the largest viruses?

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

    What special technique is required to visualize bacteria without staining them?

    <p>Use of phase-contrast microscope</p> Signup and view all the answers

    What is the approximate size of E. coli as mentioned in the text?

    <p>0.2 um long, 0.5 um diameter</p> Signup and view all the answers

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