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Growth and Nutrition of Bacteria

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

acidophile
osmotolerant
obligate aerobe
facultative anaerobe

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

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

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

cell mass
all of these
cell activity
cell count

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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

acidophile
osmotolerant
alkalophile
aerotolerant anaerobe

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Growth and Nutrition of Bacteria
Bacteria of genus Nitrosomonas use __________ as their electron source.

light
H2S
ammonia
succinate

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

phototrophs
chemotrophs
lithotrophs
organotrophs

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