Mastering Mycobacteria
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Questions and Answers

Which characteristic distinguishes mycobacteria from most other bacteria?

  • They resist decolorization with acid-ethanol
  • They do not form spores
  • They resist staining with basic aniline dyes (correct)
  • They are nonmotile

Which term is used to describe the characteristic of mycobacteria that makes them resistant to staining?

  • Spore formation
  • Nonmotility
  • Decolorization
  • Acid-fastness (correct)

What is the size range of mycobacteria?

  • 0.2 to 0.5 μm × 1 to 5 μm
  • 0.5 to 1 μm × 1 to 5 μm
  • 0.1 to 1 μm × 1 to 10 μm
  • 0.2 to 0.6 μm × 1 to 10 μm (correct)

What is the primary component of the mycobacterial cell wall?

<p>Lipid (D)</p> Signup and view all the answers

How do the pathogenic mycobacteria grow in comparison to most other bacteria pathogenic for humans?

<p>They grow slower (B)</p> Signup and view all the answers

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