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Nitrogen Fixation and Photosynthesis

Nitrogen Fixation and Photosynthesis
Nitrosomonous and Nitrobacter obtain their carbon for growth from

elementary carbon
carbon dioxide
none of these
organic compounds

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Nitrogen Fixation and Photosynthesis
In the presence of carbon monoxide, nitrogen fixation

inhibits
decreases
none of these
increases

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Nitrogen Fixation and Photosynthesis
An organism that relies exclusively on pre-synthesized food molecules is

heterotrophic
photosynthetic
prokaryotic
autotrophic

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Nitrogen Fixation and Photosynthesis
In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?

Ribulose-l,5-diphosphate
Erythrose-4-phosphate
Alpha-ketoglutarate
Ribose-5-phosphate

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Nitrogen Fixation and Photosynthesis
Plants absorb nitrates from soil and convert them into

none of these
urea
nitrogen
ammonia

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Nitrogen Fixation and Photosynthesis
Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?

Nitrosobacter
Nitrobacter
Nitrosococcus
Nitrospina

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