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Nitrogen Fixation and Photosynthesis

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

bacteria
yeasts
roundworms
moulds

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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

12 ATP
7 ATP
18 ATP
25 ATP

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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?

Bacteria
Moulds
Nematodes
Algae

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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
reaction center
photosynthetic unit
harvesting unit

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

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

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

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