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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
An organism has an optimal growth rate when the hydrogen ion concentration is very high. This organism is

aerotolerant anaerobe
neutrophile
acidophile
osmotolerant

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Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 hours
20 minutes
200 hours
20 days

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

none of these
a protozoan
an archaean
a fungus

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Growth and Nutrition of Bacteria
Nutrient content and biological structures are considered as

None of these
intrinsic factor for microbial growth
implicit factor for microbial growth
processing factor

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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

chemotrophs
fastidious hetrotrophs
chemo-lithotrophs
photo-organotrophs

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Growth and Nutrition of Bacteria
The period between inoculation of bacteria in a culture medium and beginning of multiplication is known as

lag phase
log phase
decline phase
stationary phase

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