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Nitrogen Fixation and Photosynthesis

Nitrogen Fixation and Photosynthesis
A major plant macronutrient found in nucleic acids and proteins is

iron
nitrogen
sulphur
calcium

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

thylakoids
matrix
stroma
cristae

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

none of these
carbon dioxide
organic compounds
elementary carbon

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

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

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

18 ATP
12 ATP
25 ATP
7 ATP

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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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