BACTERIA MORPHOLOGY MICRO BIOLOGY QUESTIONS

6.

Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni?
A.     Vacomycin
B.     Polymyxin
C.     Trimethoprim
D.     None of these
Answer & Explanation

Answer: Option D

Explanation:

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7.

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 & Explanation

Answer: Option A

Explanation:

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8.

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 & Explanation

Answer: Option A

Explanation:

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9.

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 & Explanation

Answer: Option B

Explanation:

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10.

Which of the following bacteria dies quickly after drying?
A.     Treponema pallidium
B.     Mycobacterium tuberculosis
C.     Staphylococcus aureus
D.     Pseudomonas aeruginosa
Answer & Explanation

Answer: Option A

Explanation:

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