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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

an archaean
a protozoan
a fungus
none of these

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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
chemotrophs
photo-organotrophs
chemo-lithotrophs

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Growth and Nutrition of Bacteria
A spore differs from an actively replicating bacterium in that the spore

is produced during a process involving asymmetric division
All of these
is metabolically inactive
is able to withstand more extreme conditions than the replicating cell

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

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

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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

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

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

cell mass
cell activity
cell count
all of these

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