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Nitrogen Fixation and Photosynthesis

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

Nitrobacter
Nitrosobacter
Nitrospina
Nitrosococcus

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

matrix
stroma
cristae
thylakoids

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

inhibits
increases
none of these
decreases

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

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

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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
An organism that relies exclusively on pre-synthesized food molecules is

prokaryotic
heterotrophic
autotrophic
photosynthetic

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