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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 minutes
20 days
200 hours
20 hours

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

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

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Growth and Nutrition of Bacteria
The cell reproduction in bacteria may occur by

binary fission
fragmentation
budding
all of these

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

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

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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

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

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Growth and Nutrition of Bacteria
Which of the following procedures uses a photocell to measure absorbance of a culture to regulate the flow of culture media?

Petroff-Hausser chamber
Coulter Counter
Hemostat
Trubidostat

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