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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Lag phase is also known as

transitional period
none of these
period of initial adjustment
generation time

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Growth and Nutrition of Bacteria
An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is

aerotolerant anaerobe
osmotolerant
acidophile
alkalophile

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

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

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Growth and Nutrition of Bacteria
The reproduction by budding occur in

Both (a) and (b)
Rhodopseudomonas acidophila
Bacillus subtilis
Hyphomicrobium vulgare

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Growth and Nutrition of Bacteria
An organism has an optimal growth rate when the hydrogen ion concentration is very high. This organism is

acidophile
neutrophile
osmotolerant
aerotolerant anaerobe

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Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 minutes
20 days
200 hours
20 hours

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