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NITROGEN FIXATION AND PHOTOSYNTHESIS

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

Alpha-ketoglutarate
Malate
Pyruvate
Oxaloacetate

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

nitrogen
ammonia
urea
none of these

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

none of these
inhibits
increases
decreases

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

prokaryotic
photosynthetic
autotrophic
heterotrophic

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

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

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