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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The organism which obtain their energy from chemicals are designated as

prototrophs
organotrophs
autotrophs
chemotrophs

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

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

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Growth and Nutrition of Bacteria
Antimicrobial constituents for the microbial growth in foods are

intrinsic factor
both (a) and (b)
extrinsic factor
none of these

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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

log phase
lag phase
decline phase
stationary phase

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Growth and Nutrition of Bacteria
The microorganisms that grow best in a low-oxygen environment is called a (n)

aerobe
anaerobe
microaerophile
facultative

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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

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

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