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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
The generation time of a culture that produces two generations per hour is

greater than that produces three generations per hour
None of these
lesser than that produces three generations per hour
equal to that produces three generations per hour

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Growth and Nutrition of Bacteria
A culture broth tube was very turbid at the bottom of the tube but clear at the top of the tube indicating that the

organism cannot produce superoxide dismutase and/or catalase
organism can tolerate oxygen
organism should be grown in an anaerobic chamber
broth is sterile

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Growth and Nutrition of Bacteria
The reproduction by budding occur in

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

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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

alkalophile
acidophile
aerotolerant anaerobe
osmotolerant

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

reproduce
grow in nutrient agar
evolve
move

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