ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A process used by plants and other organisms to convert light energy, normally from the sun, into chemical energy that can be later released to fuel the organisms activities.
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A process in which nitrogen in the atmosphere is converted into ammonium or nitrates
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A process in which bacteria convert nitrates into nitrogen gas
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Detailed explanation-1: -For nitrogen to be available to make proteins, DNA, and other biologically important compounds, it must first be converted into a different chemical form. The process of converting N2 into biologically available nitrogen is called nitrogen fixation.
Detailed explanation-2: -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-3: -Nitrogen fixation is a process in which nitrogen (N2) in the atmosphere is converted into ammonium NH4+ or nitrogen dioxide (NO2).
Detailed explanation-4: -Nitrogen fixation is the process by which nitrogen is taken from its molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other biochemical processes. Fixation can occur through atmospheric (lightning), industrial, or biological processes.
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).