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Nitrogen Fixation and Photosynthesis

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

Nitrosococcus
Nitrobacter
Nitrosobacter
Nitrospina

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

18 ATP
25 ATP
12 ATP
7 ATP

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

calcium
sulphur
iron
nitrogen

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

prokaryotic
autotrophic
photosynthetic
heterotrophic

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

moulds
bacteria
yeasts
roundworms

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