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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 hours
20 days
20 minutes
200 hours

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Growth and Nutrition of Bacteria
Which of the following has more tolerance for acidic pH (lower pH)?

Bacteria
Yeast and moulds
None of these
E. coli

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Growth and Nutrition of Bacteria
The cell reproduction in bacteria may occur by

binary fission
all of these
fragmentation
budding

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Growth and Nutrition of Bacteria
Implicit factors

None of these
depend on developing microflora
both (a) and (b)
can be synergistic

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

21 % oxygen for growth
None of these
low levels of oxygen for growth (lesser than O2 present in atmosphere)
oxygen for activation of enzymes

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Growth and Nutrition of Bacteria
Lag phase is also known as

period of initial adjustment
transitional period
none of these
generation time

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