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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 minutes
20 hours
200 hours
20 days

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Growth and Nutrition of Bacteria
A spore differs from an actively replicating bacterium in that the spore

is produced during a process involving asymmetric division
All of these
is able to withstand more extreme conditions than the replicating cell
is metabolically inactive

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Growth and Nutrition of Bacteria
The average size of cells during the exponential phase of growth is

lesser than the lag phase
greater than the lag phase
none of these
equal to the lag phase

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Growth and Nutrition of Bacteria
The straightforward method of binary fission explains how bacteria

evolve
reproduce
grow in nutrient agar
move

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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
Which of the following is the suitable temperature range for mesophiles?

20-30°C
25-40°C
None of these
>40°C

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