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Growth and Nutrition of Bacteria

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

Yeast and moulds
None of these
E. coli
Bacteria

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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

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

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Growth and Nutrition of Bacteria
The term aerotolerant anaerobe refers to an organism that

doesn't use oxygen but can grow in the presence of oxygen
requires less oxygen than is present in air
is killed by oxygen
prefers to grow without oxygen

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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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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

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

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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 able to withstand more extreme conditions than the replicating cell
is metabolically inactive

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