Bacteria Basics

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Questions and Answers

Which domain do bacteria belong to?

  • Archaea
  • Bacteria (correct)
  • Monera
  • Eukarya

What is the characteristic that distinguishes Archaea from other domains?

  • Multicellularity
  • Unicellularity
  • Presence of true nuclei
  • Extreme living conditions (correct)

What is the defining feature of Eukarya?

  • Unicellularity
  • Prokaryotic structure
  • Extreme living conditions
  • Presence of true nuclei (correct)

What is the size of bacteria typically in terms of length or circumference?

<p>One micron (A)</p> Signup and view all the answers

What is the genetic characteristic of bacteria known as?

<p>Prokaryotic (C)</p> Signup and view all the answers

What is the defining characteristic used to classify bacteria in the laboratory setting?

<p>Reaction to the Gram stain (D)</p> Signup and view all the answers

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

<p>Gram-negative (B)</p> Signup and view all the answers

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

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

Which bacteria are capable of causing infection and disease within humans and other organisms?

<p>Pathogenic bacteria (C)</p> Signup and view all the answers

Which type of bacteria can survive in the presence or absence of oxygen?

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

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