Gram Negative Bacteria in Medical Microbiology

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Questions and Answers

Which of the following is a characteristic morphology of Klebsiella sp.?

  • Gram negative, motile, long and thick bacilli
  • Gram negative, nonmotile, short and thick bacilli (correct)
  • Gram positive, motile, long and thin bacilli
  • Gram positive, motile, thin bacilli

What is the color of the colonies formed by Klebsiella pneumoniae on MacConkey agar?

  • White
  • Green
  • Pink (correct)
  • Yellow

Which sugar fermentation test result is characteristic of Klebsiella sp.?

  • No fermentation of any sugars
  • Fermentation of glucose, lactose, mannitol, and maltose (correct)
  • Fermentation of glucose and mannitol only
  • Fermentation of lactose and mannitol only

Which of the following is a common site where Klebsiella pneumoniae is found in humans?

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

What is the main reason for the mucoid colonies formed by Klebsiella sp. on media?

<p>Formation of a large capsule (D)</p> Signup and view all the answers

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