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Module 1: Introductory Bacteriology
19 Questions
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Module 1: Introductory Bacteriology

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Questions and Answers

What is the average size range of most bacteria?

  • 2 um to 5 um
  • 5 um to 10 um
  • 0.5 um to 5 um (correct)
  • 0.1 um to 1 um
  • Which of the following is not a common shape of bacteria?

  • Cubes (correct)
  • Spiral forms
  • Rods
  • Branching filaments
  • How do bacteria typically multiply?

  • Meiosis
  • Budding
  • Binary fission (correct)
  • Mitosis
  • Which organelles are absent in bacterial cells?

    <p>Nucleus and mitochondria</p> Signup and view all the answers

    In what way do motile bacteria move through liquid media?

    <p>With flagella</p> Signup and view all the answers

    Which structure of bacterial cells is responsible for the shape of the organism?

    <p>Cell wall</p> Signup and view all the answers

    Which structure of bacterial cells is associated with polypeptide in Bacillus anthracis and interferes with phagocytosis?

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

    Which structure of bacterial cells is involved in active transport of nutrients, respiration, excretion, and chemoreception?

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

    Which filamentous structure confers motility to bacterial cells?

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

    Which type of bacterial cells do not have a cell wall?

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

    How do bacteria usually multiply?

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

    What type of chromosomal structure do bacteria have?

    <p>Single circular chromosome</p> Signup and view all the answers

    What confers motility to some bacterial cells?

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

    Which cellular structure is responsible for the shape of bacterial organisms?

    <p>Cell wall</p> Signup and view all the answers

    What is the principal structural component of bacterial cells responsible for the shape of the organism?

    <p>Cell wall</p> Signup and view all the answers

    Which bacterial structure is usually associated with polypeptide in Bacillus anthracis and interferes with phagocytosis?

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

    Which type of bacteria does not have a cell wall?

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

    What is the filamentous structure that confers motility to bacterial cells?

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

    Which structure of bacterial cells is involved in active transport of nutrients, respiration, excretion, and chemoreception?

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

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