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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
first increases then decreases
decreases

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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

neutrophile
aerotolerant anaerobe
osmotolerant
acidophile

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Growth and Nutrition of Bacteria
Quantitative measurement of bacterial growth can be carried out by measuring

all of these
cell activity
cell mass
cell count

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Growth and Nutrition of Bacteria
Nutrient content and biological structures are considered as

implicit factor for microbial growth
None of these
processing factor
intrinsic factor for microbial growth

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

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

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Growth and Nutrition of Bacteria
Starvation proteins are produced by a culture during which of the following segments of the growth curve?

Death phase
Exponential phase
Lag phase
Stationary phase

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