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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 days
200 hours
20 hours
20 minutes

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Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

mesosphilic
psychrophilic
thermophilic
any of these

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Growth and Nutrition of Bacteria
The straightforward method of binary fission explains how bacteria

grow in nutrient agar
evolve
reproduce
move

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

phototrophs
lithotrophs
chemotrophs
photo-organotrophs

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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
Nutrient content and biological structures are considered as

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

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