Aerobic Gram – Negative Rods and Cocci

 

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Aerobic Gram - Negative Rods and Cocci

Question 1
Which of the following have peritrichous flagella?
A
Acetobacter
B
Gluconobacter
C
Agrobacteria
D
Rhizobium

Question 2
Which of the following organism causes whooping cough in humans?
A
E.coli
B
Bordetella pertussis
C
Francisella tularensis
D
F.meningosepticum

Question 3
Methylococcus and Methylomonas are all ..... methane-oxidizers.
A
aerobic
B
facultative
C
obligate
D
anaerobic

Question 4
Agrobacterium also fixes atmospheric nitrogen.
A
True
B
False

Question 5
Which of the following family of bacteria fix nitrogen under aerobic conditions?
A
Pseudomonadaceae
B
Azotobacteraceae
C
Rhizobiaceae
D
Methylcoccaceae

Question 6
Which of the following is an important characteristic of bacteria belonging to Zoogloea?
A
They are plant pathogens
B
Cells are embedded in a gelatinous matrix
C
Cause diseases in humans
D
Useful for industrial applications

Question 7
Pyocyanin, a blue water-soluble pigment is produced by which of the following pseudomonads?
A
P.mallei
B
P.syringae
C
P.fluorescens
D
P.aeruginosa

Question 8
Which of the following are important plant pathogens?
A
P. aeruginosa
B
P.maltophilia
C
P.syringae
D
P.pseudomallei

Question 9
What is the color of the pigment xanthomonadin?
A
Blue
B
Yellow
C
Fluorescent
D
Red

Question 10
Pseudomonas maltophilia is a fluorescent species.
A
True
B
Flase
There are 10 questions to complete.

 

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