Exercise: Nitrogen Fixation And Photosynthesis

Questions for: Nitrogen Fixation And Photosynthesis

A major plant macronutrient found in nucleic acids and proteins is
A:
calcium
B:
nitrogen
C:
sulphur
D:
iron
Answer: B
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In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?
A:
Erythrose-4-phosphate
B:
Ribulose-l,5-diphosphate
C:
Ribose-5-phosphate
D:
Alpha-ketoglutarate
Answer: B
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An organism that relies exclusively on pre-synthesized food molecules is
A:
autotrophic
B:
photosynthetic
C:
prokaryotic
D:
heterotrophic
Answer: D
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In the presence of carbon monoxide, nitrogen fixation
A:
increases
B:
decreases
C:
inhibits
D:
none of these
Answer: C
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Plants absorb nitrates from soil and convert them into
A:
urea
B:
ammonia
C:
nitrogen
D:
none of these
Answer: B
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