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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
Some organisms can use reduced inorganic compounds as electron donors and are termed as

chemotrophs
phototrophs
photo-organotrophs
lithotrophs

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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

Salmonella
all of these
C. botulinum
S. aureus

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Growth and Nutrition of Bacteria
Organisms such as lactobacilli that have elaborate requirements for specific nutrients i.e. vitamins and other growth promoting substances, are generally called as

fastidious hetrotrophs
chemo-lithotrophs
photo-organotrophs
chemotrophs

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

an archaean
a protozoan
none of these
a fungus

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

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

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