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Growth and Nutrition of Bacteria

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

microaerophile
aerobe
anaerobe
facultative

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Growth and Nutrition of Bacteria
An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is

alkalophile
acidophile
aerotolerant anaerobe
osmotolerant

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Growth and Nutrition of Bacteria
The growth is normally expressed as __________ in turbidimetric measurement

cells per ml
optical density
mg N2 /ml
cfu/ml

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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

between 16-38°C
below 16°C
above 38°C
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

decline phase
log phase
lag phase
stationary phase

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

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

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