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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
The equation used to obtain bacterial population by binary fission is

log(N/No) = nlog 2
All of these
log N/No = (0.3010) n
N = No2n

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

Phytoplankton
Zooplankton
Grass
Sea weed

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Growth and Nutrition of Bacteria
Which of the following has more tolerance for acidic pH (lower pH)?

None of these
E. coli
Bacteria
Yeast and moulds

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Growth and Nutrition of Bacteria
Organisms, using organic compounds as electron donors are called

lithotrophs
chemotrophs
organotrophs
phototrophs

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Growth and Nutrition of Bacteria
Postgates assay technique is useful in determining if a cell is viable even though it is

an obligate aerobe
too small to see
incapable of cell division
a thermophile

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