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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
What are the extrinsic factors for the microbial growth?

storage temperature
composition of gas phase
humidity
all of these

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

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Growth and Nutrition of Bacteria
Exponential phase of growth curve of bacteria is of limited duration because of

rise in cell density
accumulation of toxic metabolites
all of these
exhaustion of nutrients

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Growth and Nutrition of Bacteria
The total biomass of an organism will be determined by the nutrient present in the lowest concentration relative to the organism's requirements is a statement of

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

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Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

psychrophilic
thermophilic
any of these
mesosphilic

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Growth and Nutrition of Bacteria
Bacteria of genus Nitrosomonas use __________ as their electron source.

succinate
ammonia
H2S
light

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