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Growth and Nutrition of Bacteria

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

Lag phase
Stationary phase
Exponential phase
Death phase

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

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

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Growth and Nutrition of Bacteria
Implicit factors

both (a) and (b)
can be synergistic
None of these
depend on developing microflora

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Growth and Nutrition of Bacteria
The ability of Vibrio fischeri to produce bioluminescence chemicals only when a certain population density has been reached is an example of

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

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Growth and Nutrition of Bacteria
The organism which obtain their energy from chemicals are designated as

autotrophs
organotrophs
prototrophs
chemotrophs

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

cell mass
all of these
cell count
cell activity

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