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Cell Cultures and Characteristics

Cell Cultures and Characteristics
Which of the following bacteria can grow in alkaline pH?

Vibrio cholerae
Salmonella
Lactobacilli
Shigella

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

enriched medium
selective medium
enrichment medium
differential medium

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Cell Cultures and Characteristics
Selective media facilitate growth of only one kind of organism. Saboraud medium is used to selectively isolate

gram positive bacteria
coliform bacteria
acid fast organisms
yeasts

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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
Peptone water and nutrient broth are

enriched media
basal media
selective media
none of these

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Cell Cultures and Characteristics
Which of the following is used for the proper maintenance and preservation of pure cultures?

Periodic transfer to fresh media
Preservation by overlaying cultures with mineral oil
Preservation by lyophilization
All of these

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