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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

any of these
thermophilic
psychrophilic
mesosphilic

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

move
evolve
grow in nutrient agar
reproduce

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Growth and Nutrition of Bacteria
A synergistic effect is observed when

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

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Growth and Nutrition of Bacteria
Postgates assay technique is useful in determining if a cell is viable even though it is

too small to see
incapable of cell division
an obligate aerobe
a thermophile

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Growth and Nutrition of Bacteria
Which of the following has more tolerance for acidic pH (lower pH)?

Yeast and moulds
None of these
Bacteria
E. coli

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Growth and Nutrition of Bacteria
All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as

phototrophs
autotrophs
photo-organotrophs
chemotrophs

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