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Growth and Nutrition of Bacteria

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

succinate
ammonia
light
H2S

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Growth and Nutrition of Bacteria
A synergistic effect is observed when

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
All of these

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

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

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Growth and Nutrition of Bacteria
A spore differs from an actively replicating bacterium in that the spore

All of these
is produced during a process involving asymmetric division
is metabolically inactive
is able to withstand more extreme conditions than the replicating cell

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Growth and Nutrition of Bacteria
Lag phase is also known as

generation time
none of these
period of initial adjustment
transitional period

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Growth and Nutrition of Bacteria
An organism is completely dependent on atmospheric O2 for growth. This organism is

facultative anaerobe
osmotolerant
acidophile
obligate aerobe

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