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Nitrogen Fixation and Photosynthesis

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

increases
decreases
inhibits
none of these

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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

7 ATP
12 ATP
18 ATP
25 ATP

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

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

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

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

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

none of these
organic compounds
carbon dioxide
elementary carbon

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

thylakoids
matrix
cristae
stroma

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