Exercise: Cell Cultures And Characteristics

Questions for: 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
A:
differential medium
B:
enriched medium
C:
enrichment medium
D:
selective medium
Answer: D
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Treponema species from human oral cavity can be selected by using
A:
pH of the medium
B:
incubation temperature
C:
cell size and motility
D:
all of these
Answer: C
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In the pour plate method, the mixed culture is diluted directly in tubes of
A:
liquid agar medium
B:
sterile liquid usually water
C:
both (a) and (b)
D:
none of these
Answer: A
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Viable plate count can be obtained using
A:
Spread plate method
B:
Pour plate method
C:
both (a) and (b)
D:
Hemocytometer
Answer: C
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Which of the following hint(s) suggest/s that a given specimen is likely to contain anaerobic bacteria?
A:
Gas in specimen
B:
Foul odour
C:
Presence of sulphur granules
D:
All of these
Answer: D
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