ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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bacteria change ammonia into nitrate
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bacteria grow on nodules of plant roots
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bacteria absorbs ammonia and release ammonium
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bacteria convert gaseous nitrogen into ammonia
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Detailed explanation-1: -Nitrogen fixing bacteria convert nitrogen gas (N2 ) into organic compounds. The correct option is (c) Nitrification by bacteria converts nitrates to nitrites.
Detailed explanation-2: -Which of the following best describes the process of nitrogen fixation? Explanation: Nitrogen fixation can be described as the process in the nitrogen cycle in which bacteria “fix” atmospheric nitrogen into ammonia and usable forms of organic nitrogen.
Detailed explanation-3: -Correct option: d Most nitrogen fixing microbes are aerobic.
Detailed explanation-4: -Nitrogen fixation is the process by which gaseous nitrogen (N2) is converted to ammonia (NH3 or NH4+) via biological fixation or nitrate (NO3-) through high-energy physical processes. N2 is extremely stable and a great deal of energy is required to break the bonds that join the two N atoms.
Detailed explanation-5: -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).