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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The fragmentation occurs in

None of these
Streptomyces species
Bacillus subtilis
Nocardia species

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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)
21 % oxygen for growth
oxygen for activation of enzymes

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

organotrophs
autotrophs
prototrophs
chemotrophs

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Growth and Nutrition of Bacteria
In the exponential phase, the cells and cell mass

double at a constant rate
are constant
decreases
first increases then decreases

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Growth and Nutrition of Bacteria
Which of the following procedures uses a photocell to measure absorbance of a culture to regulate the flow of culture media?

Coulter Counter
Trubidostat
Petroff-Hausser chamber
Hemostat

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

produce a blue-green pigment
make their own food
form a long chain glycocalyx
are highly susceptible to penicillin

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