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Growth and Nutrition of Bacteria

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
Postgates assay technique is useful in determining if a cell is viable even though it is

a thermophile
incapable of cell division
an obligate aerobe
too small to see

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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

none of these
above 38°C
between 16-38°C
below 16°C

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Growth and Nutrition of Bacteria
In the exponential phase, the cells and cell mass

first increases then decreases
double at a constant rate
are constant
decreases

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

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

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Growth and Nutrition of Bacteria
An organism is completely dependent on atmospheric O2 for growth. This organism is

facultative anaerobe
osmotolerant
obligate aerobe
acidophile

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MORE MCQ ON Growth and Nutrition of Bacteria

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