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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

18 ATP
25 ATP
12 ATP
7 ATP

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Nitrogen Fixation and Photosynthesis
An organism that relies exclusively on pre-synthesized food molecules is

prokaryotic
photosynthetic
heterotrophic
autotrophic

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

iron
calcium
sulphur
nitrogen

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

none of these
elementary carbon
carbon dioxide
organic compounds

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

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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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