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Nitrogen Fixation and Photosynthesis

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

moulds
roundworms
bacteria
yeasts

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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
Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?

Nitrobacter
Nitrospina
Nitrosococcus
Nitrosobacter

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

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

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Nitrogen Fixation and Photosynthesis
A group of about 300 chlorophyll molecule acting together to trap photons and transfer energy to the pigment molecule at the reaction center may be called as

chloromass
reaction center
photosynthetic unit
harvesting unit

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

Oxaloacetate
Malate
Alpha-ketoglutarate
Pyruvate

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