Exercise: Cell Cultures And Characteristics

Questions for: Cell Cultures And Characteristics

Which of the following bacteria dies quickly after drying?
A:
Treponema pallidium
B:
Mycobacterium tuberculosis
C:
Staphylococcus aureus
D:
Pseudomonas aeruginosa
Answer: A
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The concentration of agar to obtain semi solid media is
A:
1.5-20%
B:
0.5% or less
C:
>10%
D:
>10%but<20%
Answer: B
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For the selection of endospore-forming bacteria, a mixed culture can be heated at
A:
80°C for 10 minutes
B:
70°C for 10 minutes
C:
60°C for 10 minutes
D:
90°C for 10 minutes
Answer: A
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To select cholera-causing bacterium, Vibrio cholerae, the pH of the medium is maintained at a pH of
A:
8.5
B:
8.90
C:
6.79
D:
3.5
Answer: A
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Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni?
A:
Vacomycin
B:
Polymyxin
C:
Trimethoprim
D:
None of these
Answer: D
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