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Growth and Nutrition of Bacteria

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

a fungus
none of these
a protozoan
an archaean

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Growth and Nutrition of Bacteria
The microorganisms that grow best in a low-oxygen environment is called a (n)

microaerophile
facultative
anaerobe
aerobe

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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
all of these
Salmonella
S. aureus

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

None of these
low levels of oxygen for growth (lesser than O2 present in atmosphere)
21 % oxygen for growth
oxygen for activation of enzymes

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Growth and Nutrition of Bacteria
Quantitative measurement of bacterial growth can be carried out by measuring

cell activity
cell mass
cell count
all of these

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Growth and Nutrition of Bacteria
An organism is completely dependent on atmospheric O2 for growth. This organism is

obligate aerobe
osmotolerant
acidophile
facultative anaerobe

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