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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

25 ATP
12 ATP
7 ATP
18 ATP

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Nitrogen Fixation and Photosynthesis
Plants absorb nitrates from soil and convert them into

none of these
urea
nitrogen
ammonia

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

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

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

moulds
bacteria
roundworms
yeasts

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Nitrogen Fixation and Photosynthesis
Which of the following molecule is produced from the fixation of CO2 in C4 plants?

Alpha-ketoglutarate
Malate
Oxaloacetate
Pyruvate

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

Dolichol
Phytol
None of these
Farnesol

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