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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)

anaerobe
facultative
aerobe
microaerophile

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

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

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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

below 16°C
none of these
between 16-38°C
above 38°C

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

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

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

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

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Growth and Nutrition of Bacteria
What is the primary source of food for marine life?

Grass
Zooplankton
Phytoplankton
Sea weed

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