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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
What is the primary source of food for marine life?

Zooplankton
Grass
Phytoplankton
Sea weed

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

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

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

low levels of oxygen for growth (lesser than O2 present in atmosphere)
None of these
oxygen for activation of enzymes
21 % oxygen for growth

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Growth and Nutrition of Bacteria
The straightforward method of binary fission explains how bacteria

grow in nutrient agar
reproduce
move
evolve

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Growth and Nutrition of Bacteria
Organisms such as lactobacilli that have elaborate requirements for specific nutrients i.e. vitamins and other growth promoting substances, are generally called as

fastidious hetrotrophs
chemo-lithotrophs
photo-organotrophs
chemotrophs

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