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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Pseudomonas pseudoflava can grow as

chemo-organotrophs
both (a) and (b)
none of these
chemo-lithotrophs

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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
chemotrophs
photo-organotrophs

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

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

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Growth and Nutrition of Bacteria
Postgates assay technique is useful in determining if a cell is viable even though it is

an obligate aerobe
too small to see
a thermophile
incapable of cell division

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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 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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