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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?

Pyruvate
Malate
Alpha-ketoglutarate
Oxaloacetate

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

ammonia
none of these
nitrogen
urea

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

none of these
decreases
inhibits
increases

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

heterotrophic
autotrophic
prokaryotic
photosynthetic

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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
Ribose-5-phosphate
Erythrose-4-phosphate
Alpha-ketoglutarate

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