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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

below 16°C
above 38°C
between 16-38°C
none of these

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Growth and Nutrition of Bacteria
Quantitative measurement of bacterial growth can be carried out by measuring

cell activity
all of these
cell count
cell mass

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Growth and Nutrition of Bacteria
The growth is normally expressed as __________ in turbidimetric measurement

cfu/ml
mg N2 /ml
cells per ml
optical density

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

requires less oxygen than is present in air
doesn't use oxygen but tolerates it
uses oxygen when present or grows without oxygen when absent
is killed by oxygen

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

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

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Growth and Nutrition of Bacteria
Exponential phase of growth curve of bacteria is of limited duration because of

all of these
accumulation of toxic metabolites
rise in cell density
exhaustion of nutrients

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