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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Lag phase is also known as

period of initial adjustment
none of these
generation time
transitional period

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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

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

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

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

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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

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

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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
photo-organotrophs
chemo-lithotrophs

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Growth and Nutrition of Bacteria
All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as

phototrophs
autotrophs
chemotrophs
photo-organotrophs

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