Enterobacteriaceae and Enterobacterales Order Quiz

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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?

Escherichia Signup and view all the answers

Which Genus needs extra time for lactose assimilation?

Morganella Signup and view all the answers

What is the main characteristic that distinguishes Edwardsiella and Ewingella?

Biochemical tests Signup and view all the answers

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

They all have uniform shape, size, and arrangement Signup and view all the answers

Which Genus shares 168 serotypes of O antigen with Shigella?

Escherichia Signup and view all the answers

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

Shigella is non-motile and almost all biochemical tests are Negative. Signup and view all the answers

Which organism causes dysentery?

Shigella dysenteriae Signup and view all the answers

Which bacterial species is commonly attributed to producing mucoid colonies?

Klebsiella pneumoniae subsp. pneumoniae Signup and view all the answers

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

Serratia marcescens Signup and view all the answers

Which bacterial species is the causative agent of Bubonic plague?

Yersinia pestis Signup and view all the answers

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

Proteus mirabilis Signup and view all the answers

Which bacterial species has the ability to manifest hypercapsular production?

Klebsiella pneumoniae subsp. rhinoscleromatis Signup and view all the answers

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

Enterobacter cloacea Signup and view all the answers

Which bacterial species are all positive with Phenylalanine assimilation?

Proteus vulgaris, Morganella morganii, Providencia alcalifaciens 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?

Klebsiella pneumoniae subsp. pneumoniae, Klebsiella oxytoca, Klebsiella granulomatis Signup and view all the answers

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

Salmonella Typhi, Shigella, Yersinia pestis Signup and view all the answers

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

Proteus vulgaris, Proteus mirabilis, Morganella morganii Signup and view all the answers