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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)?

E. coli
Yeast and moulds
None of these
Bacteria

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Growth and Nutrition of Bacteria
A microbe, which grows at temperatures above 95° C is most likely to be

a protozoan
none of these
an archaean
a fungus

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Growth and Nutrition of Bacteria
The combination of low levels of NaCl, NaNO3 (sodium nitrate), and slightly acid pH can prevent multiplication and toxin formation of

C. botulinum
S. aureus
Salmonella
all of these

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Growth and Nutrition of Bacteria
Some organisms can use reduced inorganic compounds as electron donors and are termed as

phototrophs
photo-organotrophs
lithotrophs
chemotrophs

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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

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

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

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