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Enterobacteriaceae

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Questions and Answers

Which of the following is a characteristic of Enterobacteriaceae?

They are Gram-negative rods found in the intestinal tract of humans and animals (correct)
They are Gram-positive cocci found in the respiratory tract of humans and animals
They are spore-forming bacteria found in soil
They are anaerobic bacteria found in aquatic environments

Which of the following genera is a part of the Enterobacteriaceae family?

Staphylococcus
Clostridium
Salmonella (correct)
Pseudomonas

Which of the following Enterobacteriaceae genera are part of the lactose fermenters group?

Escherichia (correct)
Proteus
Shigella
Salmonella

Which of the following Enterobacteriaceae genera are regularly pathogenic for humans?

Klebsiella (D) Signup and view all the answers

What is the common antigen shared by the genera of Enterobacteriaceae?

Enterobacterial common antigen (B) Signup and view all the answers

Which of the following Enterobacteriaceae genera is regularly pathogenic for humans?

Salmonella (C) Signup and view all the answers

Which of the following Enterobacteriaceae genera is part of the lactose fermenters group?

Escherichia (C) Signup and view all the answers

Which of the following is a characteristic of Enterobacteriaceae?

They share a common antigen (enterobacterial common antigen) (C) Signup and view all the answers

Which of the following genera is a part of the Enterobacteriaceae family?

Escherichia (A) Signup and view all the answers

Which of the following Enterobacteriaceae genera is a lactose non-fermenter?

Klebsiella (A) Signup and view all the answers

Study Notes

Enterobacteriaceae Characteristics

Enterobacteriaceae are characterized by being gram-negative, rod-shaped, and facilitated by oxidative metabolism.
They are facultative anaerobes, meaning they can thrive in both aerobic and anaerobic environments.

Genera of Enterobacteriaceae

Examples of genera that are part of the Enterobacteriaceae family include Escherichia, Salmonella, Shigella, Klebsiella, Proteus, and Enterobacter.

Lactose Fermenters

Genera of Enterobacteriaceae that are part of the lactose fermenters group include Escherichia and Klebsiella.

Pathogenic Genera

Genera of Enterobacteriaceae that are regularly pathogenic for humans include Escherichia, Salmonella, and Shigella.

Common Antigen

The common antigen shared by the genera of Enterobacteriaceae is the lipopolysaccharide (LPS) O antigen.

Non-Lactose Fermenters

Examples of Enterobacteriaceae genera that are lactose non-fermenters include Salmonella and Shigella.

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Description

Test your knowledge of Enterobacteriaceae, a diverse group of Gram-negative rods commonly found in the intestinal tract of humans and animals. This quiz covers genera such as Escherichia, Shigella, Salmonella, Klebsiella, Proteus, and Enterobacter, among others.