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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
The term obligate anaerobe refers to an organism that

prefers to grow without oxygen
doesn't use oxygen but tolerates it
uses oxygen when present or grows without oxygen when oxygen is absent
is killed by oxygen

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

E. coli
Yeast and moulds
Bacteria
None of these

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Growth and Nutrition of Bacteria
The fragmentation occurs in

None of these
Nocardia species
Bacillus subtilis
Streptomyces species

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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

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

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

chemotrophs
lithotrophs
organotrophs
phototrophs

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