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Cell Cultures and Characteristics

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

Shigella
Vibrio cholerae
Lactobacilli
Salmonella

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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
enrichment medium
differential medium

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Cell Cultures and Characteristics
A medium containing crystal violet dye plus sodium deoxycholate will allow

gram (-)ve intestinal bacteria to grow
none of these
aquatic bacteria to grow
gram (+)ve intestinal bacteria to grow

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Cell Cultures and Characteristics
Cell counting can be carried out by

direct microscopic count using petroffhansser counting chamber
All of these
plate counting
membrane filter count

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Cell Cultures and Characteristics
Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type?

Streak plate technique
Pour plate
Spread plate
Both (a) and (b)

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

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

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