10 Questions
Which of the following is a virulence factor of Pseudomonas?
Endotoxin (LPS)
Which disease is commonly caused by Pseudomonas aeruginosa?
Pneumonia
How can Pseudomonas aeruginosa be identified on selective media?
Blue-green colonies
Which pigment is produced by Pseudomonas aeruginosa?
Fluorescent Yellow-green pigment
How is Pseudomonas aeruginosa distinguished from other bacteria?
Acetamide positive
Which of the following is a function of Pseudomonas aeruginosa's mucoid exopolysaccharide (slime)?
Preventing phagocytosis
What is the main role of Pseudomonas aeruginosa's exotoxin A?
Disrupting protein synthesis
Which of the following is a characteristic of Pseudomonas aeruginosa colonies on MacConkey agar?
Mucoid and runny
What is the distinguishing feature of Pseudomonas aeruginosa on selective media?
Acetamide positive
Which of the following diseases is commonly caused by Pseudomonas aeruginosa?
Respiratory infection
Study Notes
Pseudomonas Aeruginosa Characteristics
- Exotoxin A is a virulence factor of Pseudomonas aeruginosa
- Pseudomonas aeruginosa is a common cause of urinary tract infections, respiratory infections, and sepsis
- On selective media, Pseudomonas aeruginosa can be identified by its ability to grow and produce a characteristic pigment
- Pseudomonas aeruginosa produces a pigment called pyocyanin
- Pseudomonas aeruginosa can be distinguished from other bacteria by its ability to oxidize glucose
- The mucoid exopolysaccharide (slime) produced by Pseudomonas aeruginosa provides protection from the host's immune system
- The main role of Pseudomonas aeruginosa's exotoxin A is to inhibit protein synthesis in host cells
- On MacConkey agar, Pseudomonas aeruginosa colonies are lactose-negative
- The distinguishing feature of Pseudomonas aeruginosa on selective media is its ability to grow and produce a characteristic pigment
Test your knowledge on Pseudomonas virulence factors and associated diseases. Learn about endotoxin, pili, exopolysaccharide, exotoxin A, phospholipase C, protease, and elastase. Explore how Pseudomonas aeruginosa causes respiratory infections, particularly in CF patients.
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