Enterobacteriaceae and Enterobacterales Order Quiz
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Questions and Answers

Which Family is the biggest and first discovered under Order Enterobacterales?

  • Morganellaceae
  • Enterobacteriaceae (correct)
  • Hafniaceae
  • Erwiniaceae

How do Non-fermenters like Pseudomonas behave towards Glucose fermentation?

  • They do not ferment Glucose (correct)
  • They ferment only Glucose
  • They partially ferment Glucose
  • They ferment Glucose and other types of sugars

What distinguishes Vibrio from Enterobacteriaceae in terms of oxidase activity?

  • Both Vibrio and Enterobacteriaceae are oxidase positive
  • Vibrio is oxidase positive, while Enterobacteriaceae is oxidase negative (correct)
  • Vibrio is oxidase negative, while Enterobacteriaceae is oxidase positive
  • Both Vibrio and Enterobacteriaceae are oxidase negative

Which Genus is a Rapid Lactose Fermenter?

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

Which Genus needs extra time for lactose assimilation?

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

What is the main characteristic that distinguishes Edwardsiella and Ewingella?

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

Why is microscopic morphological identification of Gram Negative organisms in the family of Enterobacteriaceae not important to remember?

<p>They all have uniform shape, size, and arrangement (C)</p> Signup and view all the answers

Which Genus shares 168 serotypes of O antigen with Shigella?

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

What makes Shigella different from Escherichia in terms of motility and biochemical tests?

<p><strong>Shigella</strong> is non-motile and almost all biochemical tests are Negative. (B)</p> Signup and view all the answers

Which organism causes dysentery?

<p><strong>Shigella dysenteriae</strong> (B)</p> Signup and view all the answers

Which bacterial species is commonly attributed to producing mucoid colonies?

<p>Klebsiella pneumoniae subsp. pneumoniae (A)</p> Signup and view all the answers

Which bacterial species is known for producing brick-red colonies at room temperature?

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

Which bacterial species is the causative agent of Bubonic plague?

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

Which bacterial species is commonly present in the large intestine as part of the indigenous microbiota?

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

Which bacterial species has the ability to manifest hypercapsular production?

<p>Klebsiella pneumoniae subsp. rhinoscleromatis (A)</p> Signup and view all the answers

Which bacterial species within the Enterobacter genus has been recently designated as Klebsiella cloacea?

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

Which bacterial species are all positive with Phenylalanine assimilation?

<p>Proteus vulgaris, Morganella morganii, Providencia alcalifaciens (C)</p> Signup and view all the answers

Which bacterial species belong to the same tribe due to their ability to produce a large type of capsules?

<p>Klebsiella pneumoniae subsp. pneumoniae, Klebsiella oxytoca, Klebsiella granulomatis (B)</p> Signup and view all the answers

Which bacterial species are true pathogens and not part of the normal flora of the large intestine?

<p>Salmonella Typhi, Shigella, Yersinia pestis (C)</p> Signup and view all the answers

Which bacterial species are known for their ability to assimilate Phenylalanine?

<p>Proteus vulgaris, Proteus mirabilis, Morganella morganii (C)</p> Signup and view all the answers

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