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Nitrogen Fixation and Photosynthesis

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

prokaryotic
autotrophic
photosynthetic
heterotrophic

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

none of these
organic compounds
carbon dioxide
elementary carbon

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

nitrogen
none of these
urea
ammonia

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

decreases
inhibits
none of these
increases

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Nitrogen Fixation and Photosynthesis
What is the metal ligand in chlorophylls?

Iron (Fe)
Magnesium (Mg)
Copper (Cu)
Manganese (Mn)

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

Nitrobacter
Nitrosobacter
Nitrospina
Nitrosococcus

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