Exercise: Cell Cultures And Characteristics

Questions for: Cell Cultures And Characteristics

Which of the following methods is most likely to be quantitative?
A:
Dilution and plating
B:
Gram staining
C:
Wet mount
D:
None of these
Answer: A
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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
A:
differential medium
B:
enriched medium
C:
enrichment medium
D:
selective medium
Answer: C
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All bacteria that inhabit the human body are
A:
heterotrophs
B:
chemolithotrophs
C:
autotrophs
D:
phototroph
Answer: A
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Which of the following bacteria can grow in alkaline pH?
A:
Shigella
B:
Lactobacilli
C:
Salmonella
D:
Vibrio cholerae
Answer: D
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A medium containing crystal violet dye plus sodium deoxycholate will allow
A:
gram (-)ve intestinal bacteria to grow
B:
gram (+)ve intestinal bacteria to grow
C:
aquatic bacteria to grow
D:
none of these
Answer: A
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