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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The reproduction by budding occur in

Both (a) and (b)
Hyphomicrobium vulgare
Bacillus subtilis
Rhodopseudomonas acidophila

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Growth and Nutrition of Bacteria
An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is

aerotolerant anaerobe
osmotolerant
acidophile
alkalophile

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

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

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

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

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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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Growth and Nutrition of Bacteria
Lag phase is also known as

transitional period
none of these
period of initial adjustment
generation time

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