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Nitrogen Fixation and Photosynthesis

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

inhibits
decreases
increases
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
25 ATP
18 ATP
12 ATP

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

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

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

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

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Nitrogen Fixation and Photosynthesis
What type of long chain alcohol is esterified to plant chlorophyll molecules?

Farnesol
None of these
Dolichol
Phytol

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Nitrogen Fixation and Photosynthesis
Which of the following aid plants in the acquisition of nitrogen from nitrogen gas of the atmosphere?

Algae
Moulds
Bacteria
Nematodes

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