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Questions and Answers
Which of the following is a characteristic of Enterobacteriaceae?
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?
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?
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?
Which of the following Enterobacteriaceae genera are regularly pathogenic for humans?
What is the common antigen shared by the genera of Enterobacteriaceae?
What is the common antigen shared by the genera of Enterobacteriaceae?
Which of the following Enterobacteriaceae genera is regularly pathogenic for humans?
Which of the following Enterobacteriaceae genera is regularly pathogenic for humans?
Which of the following Enterobacteriaceae genera is part of the lactose fermenters group?
Which of the following Enterobacteriaceae genera is part of the lactose fermenters group?
Which of the following is a characteristic of Enterobacteriaceae?
Which of the following is a characteristic of Enterobacteriaceae?
Which of the following genera is a part of the Enterobacteriaceae family?
Which of the following genera is a part of the Enterobacteriaceae family?
Which of the following Enterobacteriaceae genera is a lactose non-fermenter?
Which of the following Enterobacteriaceae genera is a lactose non-fermenter?
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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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