Bacterial Classification and Arrangement Quiz
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Questions and Answers

What is the main characteristic of Vibrio cholerae?

  • Fermentative (correct)
  • Gram-positive staining
  • Oxidase-negative
  • Spherical shape

Which type of bacteria are poorly staining species like Spirochaetes and Mycoplasmas?

  • Acid-fast bacteria
  • Gram-negative bacteria (correct)
  • Anaerobic bacteria
  • Gram-positive bacteria

What is the function of capsules in bacteria?

  • Increase susceptibility to desiccation
  • Enhance antibiotic resistance
  • Prevent bacterial growth
  • Impair phagocytosis (correct)

Which bacterium has a cell wall similar to Gram-negative bacteria?

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

What is a characteristic of Protoplast bacteria?

<p>Lacking cell wall (A)</p> Signup and view all the answers

Which organism grows both in eggs and tissue culture?

<p>Chlamydia (B)</p> Signup and view all the answers

Which bacteria are intracellular organisms that have not been cultured on lab media?

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

What type of bacteria is sensitive to antibiotics and grows on tissue culture?

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

Which bacterium has both DNA and RNA and a Gram-negative cell wall?

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

Which bacterial feature determines access of certain molecules to the cell membrane and increases tolerance of desiccation?

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

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