Question

Explain The Nitrogen Cycle.

Answer 1

The nitrogen cycle is the way that nitrogen in nature is changed into many different forms that are used by living organism[s].

Air is about 78% nitrogen. Nitrogen is needed for life. It is an important part of proteins, DNA, and RNA. In plants, nitrogen is needed for photosynthesis and growth. [1] Nitrogen fixationis needed to change the nitrogen in air (N2) into forms that can be used by life. Most nitrogen fixation is done by microorganisms called bacteria. These bacteria have an enzyme that combines N2 with hydrogen gas (H2) to make ammonia (NH3).

Answer 2

Hello friend

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⚫ Nitrogen Cycle

Nitrogen forms 78℅ , the maximum proportion of the atmosphere It is very necessary for the maintenance of the cycle of nature.

The circulation and recycling of nitrogen gas into the form different compounds through various biotic and abiotic processes in nature is called the nitrogen cycle.

All organisms participate in the nitrogen cycle it is an important component of proteins and nucleic acids.

As compared to other elements it is inactive and does not easily combine with other elements. Most organisms cannot use the free form of Nitrogen.

⚫Important processes of nitrogen cycle


i.) Nitrogen fixation :: Conversion of nitrogen into nitrates and nitrites through atmosphere, industrial and through biological processes.



ii.) Ammonification :: Release of ammonia through decomposition of dead bodies and excretory wastes of organisms.



iii.) Nitrification :: Conversion of ammonia into a nitrites and then nitrate.



iv.) Denitrification :: Conversion of nitrogen Compounds into gaseous nitrogen.

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