NEW
Font size
WorksheetsMicrobiology Quiz
Total questions: 15
Worksheet time: 8mins
Which of the following is a general characteristic of Citrobacter and Enterobacter?
G+ve bacilli
Non-motile
Facultative anaerobe
Spore forming
Where are Citrobacter and Enterobacter commonly found?
Air
Ocean
Soil
Ice
Which species of Citrobacter causes sepsis, meningitis, and brain abscess in neonates and infants?
Citro. diversus
Citro. koseri
Citro amalonaticus
Citro. freundii
What is the optimum temperature for the culture of Citrobacter and Enterobacter?
25°C
40°C
30°C
37°C
Which agar medium is used for the culture of Citrobacter and Enterobacter that shows pink color after 48 hours?
Blood agar
MacConkey agar
Nutrient agar
Sabouraud agar
What is the virulence factor of Enterobacter that prevents phagocytosis and induces an inflammatory response?
Pili
Capsule
Flagella
Ribosomes
Which species of Enterobacter causes pneumonia in ventilated patients?
E. aerogenes
E. coli
E. faecalis
E. cloacae
What is the color of the colonies produced by Citrobacter koseri on XLD media?
Yellow with black center
Pink
Green
White
Which of the following is a biochemical test that is positive for Citrobacter amalonaticus?
Urease
Motility
Voges-Proskauer
Indole
What is the treatment often effective in the Enterobacter infections?
Tetracycline
Penicillin
Cephalosporin
Aminoglycosides
Which of the following is a characteristic of Citrobacter koseri?
Indole +ve
Acid from malonate +
H2S production +
Acid from salicin +
What is the color of the colonies produced by Enterobacter cloacae on MacConkey agar?
Yellow
White
Green
Pink
Which agar medium is used for the culture of Citrobacter and Enterobacter that is non-hemolytic?
MacConkey agar
Blood agar
Sabouraud agar
Nutrient agar
Which of the following is a characteristic of Citrobacter freundii?
Acid from malonate +
H2S production +
Indole -ve
Acid from salicin +
What is the color of the colonies produced by Enterobacter aerogenes on MacConkey agar?
Green
White
Yellow
Pink
