Microorganisms: Bacteria Overview
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Questions and Answers

What is the domain to which bacteria belong?

  • Eukarya
  • Archaea
  • Bacteria (correct)
  • Monera
  • Which domain contains extremophiles that live in extreme environments?

  • Bacteria
  • Monera
  • Eukarya
  • Archaea (correct)
  • What characteristic defines bacteria as prokaryotes?

  • Ability to survive in extreme temperatures
  • Presence of true nuclei in cells
  • Microscopic size
  • Lack of a nuclear envelope (correct)
  • What is the size range of the smallest unicellular eukaryotes?

    <p>10 to 100 microns</p> Signup and view all the answers

    What does it mean for bacteria to be unicellular?

    <p>Composed of a single cell</p> Signup and view all the answers

    Which type of bacteria does not react to the Gram stain due to their thin peptidoglycan layer and outer lipid layer?

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

    Which bacterial shape is referred to as cocci?

    <p>Sphere-shaped</p> Signup and view all the answers

    What is the process through which bacteria reproduce?

    <p>Binary fission</p> Signup and view all the answers

    Which bacteria can enter a cryptobiotic, or dormant, stage until environmental conditions are favorable for their growth?

    <p>Endospore-forming bacteria</p> Signup and view all the answers

    Which bacterial species is responsible for the sexually transmitted infection known as syphilis?

    <p>Treponema pallidum</p> Signup and view all the answers

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