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Growth and Nutrition of Bacteria

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
A synergistic effect is observed when

one organism removes an inhibitory substance for another
one organism produces a growth factor utilized by another
microbial alteration of pH, aw, Eh favours the growth of another
All of these

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Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

any of these
psychrophilic
mesosphilic
thermophilic

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

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

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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?

Coulter Counter
Petroff-Hausser chamber
Hemostat
Trubidostat

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Growth and Nutrition of Bacteria
The period between inoculation of bacteria in a culture medium and beginning of multiplication is known as

stationary phase
lag phase
decline phase
log phase

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