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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The fragmentation occurs in

None of these
Nocardia species
Bacillus subtilis
Streptomyces species

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Growth and Nutrition of Bacteria
The equation used to obtain bacterial population by binary fission is

All of these
N = No2n
log(N/No) = nlog 2
log N/No = (0.3010) n

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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

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

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

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

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Growth and Nutrition of Bacteria
Organisms, using organic compounds as electron donors are called

organotrophs
phototrophs
chemotrophs
lithotrophs

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

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

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