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Nitrogen Fixation and Photosynthesis

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

photosynthetic
heterotrophic
autotrophic
prokaryotic

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

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

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

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Nitrogen Fixation and Photosynthesis
What type of long chain alcohol is esterified to plant chlorophyll molecules?

None of these
Dolichol
Phytol
Farnesol

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Nitrogen Fixation and Photosynthesis
Organisms capable of converting N2 to NO3 are

moulds
roundworms
bacteria
yeasts

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

Nitrosobacter
Nitrobacter
Nitrosococcus
Nitrospina

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