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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Starvation proteins are produced by a culture during which of the following segments of the growth curve?

Stationary phase
Lag phase
Death phase
Exponential phase

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

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

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Growth and Nutrition of Bacteria
A culture broth tube was very turbid at the bottom of the tube but clear at the top of the tube indicating that the

organism should be grown in an anaerobic chamber
organism cannot produce superoxide dismutase and/or catalase
organism can tolerate oxygen
broth is sterile

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Growth and Nutrition of Bacteria
An organism is completely dependent on atmospheric O2 for growth. This organism is

facultative anaerobe
obligate aerobe
osmotolerant
acidophile

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Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

any of these
psychrophilic
thermophilic
mesosphilic

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Growth and Nutrition of Bacteria
The cell reproduction in bacteria may occur by

budding
all of these
binary fission
fragmentation

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