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Growth and Nutrition of Bacteria

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

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

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

Phytoplankton
Sea weed
Grass
Zooplankton

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

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

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Growth and Nutrition of Bacteria
All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as

chemotrophs
phototrophs
photo-organotrophs
autotrophs

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Growth and Nutrition of Bacteria
Nutrient content and biological structures are considered as

processing factor
None of these
intrinsic factor for microbial growth
implicit factor for microbial growth

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Growth and Nutrition of Bacteria
During exponential growth, the growth rate is

number of generations per unit time
both (a) and (b)
none of these
reciprocal of generation time

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