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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Lag phase is also known as

transitional period
generation time
none of these
period of initial adjustment

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

humidity
all of these
composition of gas phase
storage temperature

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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
both (a) and (b)
reciprocal of generation time

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Growth and Nutrition of Bacteria
A culture broth tube was very turbid at the bottom of the tube but clear at the top of the tube indicating that the

broth is sterile
organism cannot produce superoxide dismutase and/or catalase
organism can tolerate oxygen
organism should be grown in an anaerobic chamber

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Growth and Nutrition of Bacteria
Antimicrobial constituents for the microbial growth in foods are

extrinsic factor
none of these
intrinsic factor
both (a) and (b)

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

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

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