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Cell Cultures and Characteristics

Cell Cultures and Characteristics
Which of the following bacteria dies quickly after drying?

Mycobacterium tuberculosis
Staphylococcus aureus
Pseudomonas aeruginosa
Treponema pallidium

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Cell Cultures and Characteristics
Important example(s) of enriched medium/media is/ are

Loeffler's serum slope
All of these
Bordet-gengou medium
Blood agar

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Cell Cultures and Characteristics
In the process of freeze drying, a dense cell suspension is placed in small vials and is frozen at

-48 to -58°C
-30 to -48°C
-20 to -30°C
-60 to -78°C

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Cell Cultures and Characteristics
Peptone water and nutrient broth are

none of these
selective media
basal media
enriched media

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Cell Cultures and Characteristics
When a substance is added to a liquid medium which inhibits the growth of unwanted bacteria and favors the growth of wanted bacteria, it is known as

enriched medium
selective medium
differential medium
enrichment medium

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Cell Cultures and Characteristics
The concentration of agar to obtain semi solid media is

>10%
0.5% or less
1.5-20%
>10%but<20%

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