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Growth and Nutrition of Bacteria

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

light
ammonia
succinate
H2S

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Growth and Nutrition of Bacteria
Implicit factors

depend on developing microflora
None of these
both (a) and (b)
can be synergistic

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Growth and Nutrition of Bacteria
A microbe, which grows at temperatures above 95° C is most likely to be

an archaean
a protozoan
none of these
a fungus

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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
Autotrophic bacteria are those which

form a long chain glycocalyx
make their own food
are highly susceptible to penicillin
produce a blue-green pigment

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Growth and Nutrition of Bacteria
An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is

acidophile
osmotolerant
alkalophile
aerotolerant anaerobe

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