Respuesta :
Andrew Knoll's idea about prokaryotic metabolism from fundamental ecological circuity of life the bacteria but not the mammals, underpin the long-term and efficient functioning of the biosphere, it relates to the nitrogen cycle because of the bacteria is not emitting any nitrogen at all.
Andrew Knoll's idea about prokaryotic metabolism is related to the nitrogen cycle since some bacteria are responsible for this mechanism.
Some prokaryotic microorganisms are capable of using atmospheric nitrogen, in a process called biological nitrogen fixation in which N2 is converted to NH3 (ammonia).
Bacteria capable of carrying out this process encode a complex enzyme called nitrogenase, which is responsible for carrying out the fixation process.
The nitrogen cycle is the biogeochemical cycle on which the biosphere and all organisms depend for growth.
Nitrogen, being the most abundant element in the atmosphere, cannot be used by plants, however these bacteria can use it, and by associating with plants, they take advantage of nitrogen.
At this point, animals use plants as a source of nitrogen molecules, which does not require symbiotic relationships with fixing bacteria.
Therefore, we can conclude the nitrogen cycle is a vital circuit for the existence of life and it reaches us through a long chain of transmission, where prokaryotic microorganisms are a fundamental part of this cycle.
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