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Nitrogen Fixation and Photosynthesis

Nitrogen Fixation and Photosynthesis
During nitrogen fixation the enzyme nitrogenase catalyse the reaction. The reaction is high energy demanding which require approximately

12 ATP
7 ATP
25 ATP
18 ATP

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

thylakoids
cristae
stroma
matrix

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

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

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

none of these
inhibits
increases
decreases

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

prokaryotic
heterotrophic
photosynthetic
autotrophic

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

urea
ammonia
none of these
nitrogen

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