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Growth and Nutrition of Bacteria

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

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

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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

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

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Growth and Nutrition of Bacteria
The ability of Vibrio fischeri to produce bioluminescence chemicals only when a certain population density has been reached is an example of

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

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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
one organism removes an inhibitory substance for another
one organism produces a growth factor utilized by another
All of these

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Growth and Nutrition of Bacteria
The average size of cells during the exponential phase of growth is

lesser than the lag phase
none of these
equal to the lag phase
greater than the lag phase

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Growth and Nutrition of Bacteria
The growth is normally expressed as __________ in turbidimetric measurement

mg N2 /ml
cells per ml
optical density
cfu/ml

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