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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The cell reproduction in bacteria may occur by

budding
binary fission
fragmentation
all of these

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

composition of gas phase
storage temperature
humidity
all of these

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Growth and Nutrition of Bacteria
During exponential growth, the growth rate is

none of these
number of generations per unit time
reciprocal of generation time
both (a) and (b)

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Growth and Nutrition of Bacteria
Which of the following is the suitable temperature range for mesophiles?

None of these
>40°C
20-30°C
25-40°C

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Growth and Nutrition of Bacteria
A synergistic effect is observed when

All of these
one organism produces a growth factor utilized by another
microbial alteration of pH, aw, Eh favours the growth of another
one organism removes an inhibitory substance for another

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Growth and Nutrition of Bacteria
The microorganisms that grow best in a low-oxygen environment is called a (n)

anaerobe
microaerophile
aerobe
facultative

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