The Mycoplasmas

 

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The Mycoplasmas

Question 1
What type of colonies are formed by Mycoplasmas on agar plate?
A
colourless
B
coloured
C
lawn formation
D
fried-egg

Question 2
Lyticum flagellatum is an endosymbiont carried by certain strains of .....
A
bacteria
B
fungi
C
viruses
D
protozoa

Question 3
The colonies of Mycoplasmas in agar plate can be observed by means of a .....
A
low-power microscope
B
high-power microscope
C
phase contrast microscopy
D
bright-field microscopy

Question 4
Mycoplasmas can be cultivated in vitro on nonliving media as .....
A
facultative aerobes
B
obligate aerobes
C
facultative anaerobes
D
microaerophiles

Question 5
The mycoplasmas require which of the following substance for growth?
A
Nitrogen
B
Carbon
C
Cholesterol
D
Glucose

Question 6
Which of the following family of bacteria are pathogenic for citrus and other plants?
A
Mycoplasmataceae
B
Acholeplasmataceae
C
Spiroplamataceae
D
Anaplasmataceae

Question 7
Penicillin causes inhibition of Mycoplasmas.
A
True
B
False

Question 8
Mycoplasmas cannot give rise to walled bacterial form like L-phase variants.
A
True
B
False

Question 9
L.flagellatum performs the function of synthesizing .....
A
vitamins
B
hormones
C
organic acids
D
folic acid and toxins

Question 10
The smallest cells of mycoplasmas are about ..... in diameter.
A
1 micrometre
B
0.3 micrometre
C
5 micrometre
D
1 metre
There are 10 questions to complete.

 

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