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Nitrogen Fixation and Photosynthesis

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

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

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

matrix
stroma
cristae
thylakoids

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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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Nitrogen Fixation and Photosynthesis
Nitrosomonous and Nitrobacter obtain their carbon for growth from

carbon dioxide
elementary carbon
organic compounds
none of these

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

urea
none of these
ammonia
nitrogen

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Nitrogen Fixation and Photosynthesis
Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?

Nitrosobacter
Nitrosococcus
Nitrobacter
Nitrospina

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