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Nitrogen Fixation and Photosynthesis

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

increases
inhibits
none of these
decreases

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

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

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

autotrophic
heterotrophic
prokaryotic
photosynthetic

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

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

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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

harvesting unit
reaction center
chloromass
photosynthetic unit

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

Oxaloacetate
Alpha-ketoglutarate
Pyruvate
Malate

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