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Nitrogen Fixation and Photosynthesis

Nitrogen Fixation and Photosynthesis
Which of the following aid plants in the acquisition of nitrogen from nitrogen gas of the atmosphere?

Nematodes
Algae
Bacteria
Moulds

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

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

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

calcium
iron
nitrogen
sulphur

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Nitrogen Fixation and Photosynthesis
What is the metal ligand in chlorophylls?

Iron (Fe)
Magnesium (Mg)
Copper (Cu)
Manganese (Mn)

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

Nitrosococcus
Nitrosobacter
Nitrospina
Nitrobacter

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

Farnesol
None of these
Dolichol
Phytol

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