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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
25 ATP
7 ATP
18 ATP

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

sulphur
calcium
nitrogen
iron

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

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

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

matrix
thylakoids
cristae
stroma

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Nitrogen Fixation and Photosynthesis
Organisms capable of converting N2 to NO3 are

moulds
roundworms
bacteria
yeasts

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Nitrogen Fixation and Photosynthesis
The chief source of nitrogen for green plants is

ammonium salts
atmospheric nitrogen
nitrates
low molecular weight- organic nitrogenous compound

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