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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
A microbe, which grows at temperatures above 95° C is most likely to be

an archaean
a fungus
none of these
a protozoan

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Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 days
20 hours
200 hours
20 minutes

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Growth and Nutrition of Bacteria
The fragmentation occurs in

None of these
Streptomyces species
Nocardia species
Bacillus subtilis

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Growth and Nutrition of Bacteria
The term facultative anaerobe refers to an organism that

is killed by oxygen
uses oxygen when present or grows without oxygen when absent
requires less oxygen than is present in air
doesn't use oxygen but tolerates it

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Growth and Nutrition of Bacteria
Exponential phase of growth curve of bacteria is of limited duration because of

rise in cell density
accumulation of toxic metabolites
exhaustion of nutrients
all of these

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Growth and Nutrition of Bacteria
What are the extrinsic factors for the microbial growth?

composition of gas phase
humidity
all of these
storage temperature

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