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Nitrogen Fixation and Photosynthesis

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

bacteria
moulds
roundworms
yeasts

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

calcium
nitrogen
sulphur
iron

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

carbon dioxide
none of these
organic compounds
elementary carbon

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Nitrogen Fixation and Photosynthesis
In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?

Ribulose-l,5-diphosphate
Alpha-ketoglutarate
Erythrose-4-phosphate
Ribose-5-phosphate

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Nitrogen Fixation and Photosynthesis
A group of about 300 chlorophyll molecule acting together to trap photons and transfer energy to the pigment molecule at the reaction center may be called as

chloromass
photosynthetic unit
harvesting unit
reaction center

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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
7 ATP
25 ATP

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