Exercise: Cell Cultivations

Questions for: Cell Cultivations

Semi-solid media, prepared with agar at concentrations of 0.5% or less are useful for the cultivation of
A:
Microaerophillic bacteria
B:
Lactobacilli
C:
E.coli
D:
all of these
Answer: A
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Balanced growth is defined as
A:
cultures undergoing balanced growth while maintaining a constant chemical composition
B:
balancing the growth while controlling the pH
C:
balancing the growth while controlling the temperature
D:
balancing the growth while changing the nutrient composition
Answer: A
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Thiobacillus thiooxidans has an optimum pH of
A:
2.0-3.5
B:
0.5-6.0
C:
6.5-7.5
D:
9.0-9.5
Answer: A
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Suspension cultures consist of cells and cell aggregates, growing dispersed in
A:
liquid medium
B:
solid nutrient medium
C:
solid or liquid medium
D:
none of these
Answer: A
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Which of the following is an abiotic elicitors?
A:
UV irradiation
B:
Osmotic shock
C:
Heavy metal ions
D:
All of these
Answer: D
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