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Nitrogen Fixation and Photosynthesis

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

decreases
inhibits
increases
none of these

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

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

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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

harvesting unit
chloromass
photosynthetic unit
reaction center

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

Nitrosococcus
Nitrospina
Nitrobacter
Nitrosobacter

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Nitrogen Fixation and Photosynthesis
During nitrogen fixation the enzyme nitrogenase catalyse the reaction. The reaction is high energy demanding which require approximately

12 ATP
25 ATP
18 ATP
7 ATP

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

yeasts
roundworms
bacteria
moulds

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