Biology, asked by naushad66ali, 2 months ago

What is nitrogen cycle and nitrogen fixation?

Answers

Answered by Anonymous
7

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  • The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.

  • Reduction of nitrogen to ammonia by living organisms is called biological nitrogen fixation. The enzyme nitrogenase present in prokaryotes catalyses the process of nitrogen fixation, and the prokaryotes are known as nitrogen fixer. ... A number of cyanabacteria like Anabaena and Nostoc are free-living nitrogen fixer.
Answered by Rastomibty
1

Answer:

nitrogen fixation, any natural or industrial process that causes free nitrogen (N2), which is a relatively inert gas plentiful in air, to combine chemically with other elements to form more-reactive nitrogen compounds such as ammonia, nitrates, or nitrites. nitrogen cycle.

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