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Growth and Nutrition of Bacteria

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
Trubidostat
Hemostat

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

requires less oxygen than is present in air
doesn't use oxygen but can grow in the presence of oxygen
prefers to grow without oxygen
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
What are the extrinsic factors for the microbial growth?

all of these
composition of gas phase
humidity
storage temperature

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Growth and Nutrition of Bacteria
An organism is completely dependent on atmospheric O2 for growth. This organism is

osmotolerant
obligate aerobe
acidophile
facultative anaerobe

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Growth and Nutrition of Bacteria
The straightforward method of binary fission explains how bacteria

grow in nutrient agar
evolve
move
reproduce

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