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

Death phase
Stationary phase
Lag phase
Exponential phase

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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 metabolically inactive
is able to withstand more extreme conditions than the replicating cell

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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
greater than that produces three generations per hour
None of these

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Growth and Nutrition of Bacteria
Which of the following is used to grow bacterial cultures continuously?

Petroff-Hausser chamber
Coulter Counter
Hemostat
Chemostat

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Growth and Nutrition of Bacteria
An organism is completely dependent on atmospheric O2 for growth. This organism is

obligate aerobe
facultative anaerobe
osmotolerant
acidophile

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