FORESTRY
GENERAL FORESTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What form of nitrogen is found in the atmosphere and then captured by nitrogen fixing bacteria?
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N2
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NH4
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NO2
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NO3
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Explanation:
Detailed explanation-1: -Nitrogen gas from the atmosphere is fixed into organic nitrogen by nitrogen-fixing bacteria.
Detailed explanation-2: -Biological nitrogen fixation (BNF), discovered by Beijerinck in 1901 (Beijerinck 1901), is carried out by a specialized group of prokaryotes. These organisms utilize the enzyme nitrogenase to catalyze the conversion of atmospheric nitrogen (N2) to ammonia (NH3).
Detailed explanation-3: -The mixture of gases that makes up the Earth’s atmosphere is known as air. Nitrogen makes up 78 % of this gas, which is mixed with oxygen (21%), water vapour (variable), argon (0.9 %), carbon dioxide (0.04%), and trace gases.
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