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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
The straightforward method of binary fission explains how bacteria

grow in nutrient agar
reproduce
evolve
move

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Growth and Nutrition of Bacteria
The average size of cells during the exponential phase of growth is

lesser than the lag phase
none of these
equal to the lag phase
greater than the lag phase

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Growth and Nutrition of Bacteria
The generation time of a culture that produces two generations per hour is

lesser than that produces three generations per hour
greater than that produces three generations per hour
None of these
equal to that produces three generations per hour

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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

photo-organotrophs
autotrophs
chemotrophs
phototrophs

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

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

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