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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

none of these
below 16°C
between 16-38°C
above 38°C

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Growth and Nutrition of Bacteria
Exponential phase of growth curve of bacteria is of limited duration because of

accumulation of toxic metabolites
all of these
rise in cell density
exhaustion of nutrients

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Growth and Nutrition of Bacteria
A synergistic effect is observed when

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

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Growth and Nutrition of Bacteria
Lag phase is also known as

period of initial adjustment
none of these
transitional period
generation time

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Growth and Nutrition of Bacteria
The reproduction by budding occur in

Hyphomicrobium vulgare
Bacillus subtilis
Rhodopseudomonas acidophila
Both (a) and (b)

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Growth and Nutrition of Bacteria
The total biomass of an organism will be determined by the nutrient present in the lowest concentration relative to the organism's requirements is a statement of

Shelford's law of tolerance
quorum sensing
Heisenberg's principle of uncertainty
Liebig's law of the minimum

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