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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
Exponential phase
Death phase
Lag phase

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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
decline phase
stationary phase
lag phase

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Growth and Nutrition of Bacteria
The term obligate anaerobe refers to an organism that

uses oxygen when present or grows without oxygen when oxygen is absent
is killed by oxygen
doesn't use oxygen but tolerates it
prefers to grow without oxygen

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Growth and Nutrition of Bacteria
Some organisms can use reduced inorganic compounds as electron donors and are termed as

lithotrophs
phototrophs
photo-organotrophs
chemotrophs

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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 term facultative anaerobe refers to an organism that

requires less oxygen than is present in air
doesn't use oxygen but tolerates it
is killed by oxygen
uses oxygen when present or grows without oxygen when absent

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