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Nitrogen Fixation and Photosynthesis

Nitrogen Fixation and Photosynthesis
A major plant macronutrient found in nucleic acids and proteins is

nitrogen
calcium
iron
sulphur

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

bacteria
yeasts
roundworms
moulds

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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

25 ATP
12 ATP
7 ATP
18 ATP

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

none of these
increases
inhibits
decreases

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

Nitrospina
Nitrosococcus
Nitrosobacter
Nitrobacter

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MORE MCQ ON Nitrogen Fixation and Photosynthesis

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