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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
The total biomass of an organism will be determined by the nutrient present in the lowest concentration relative to the organism's requirements is a statement of

quorum sensing
Liebig's law of the minimum
Heisenberg's principle of uncertainty
Shelford's law of tolerance

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Growth and Nutrition of Bacteria
The reproduction by budding occur in

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

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

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

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Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 minutes
200 hours
20 hours
20 days

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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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