Question

explain nitrogen cycle in detail and define all the terms involved in it

Answer 1

HIII.....


FIND YOUR ANSWER IN THE PIC I GAV
HOPE THIS HELPS YOU


PLEASE MARK AS BRAINLIEST

Answer 2

Atmosphere is the pool or storehouse of nitrogen. It forms 78% of the atmosphere. Nitrogen is also an essential component of amino acids,proteins,nucleic acids,enzymes and vitamins. These form structural and functional constituents of living beings. Nitrogen is also a part of many other biologically important compounds such as alkaloids and urea.
However, atmospheric nitrogen is inert. With the exception of blue-green algae and nitrogen fixing bacteria, living organisms cannot use nitrogen directly from the atmosphere. They cannot convert inert nitrogen into nitrates and nitrites which can be directly taken up and used to make up required molecules by the plants.
The cyclic process by which nitrogen is circulated continuously through the living and nonliving components of the biosphere is called Nitrogen Cycle.

Steps involved in it are -

1. Nitrogen Fixation - The process of converting free atmospheric nitrogen gas into compounds of nitrogen is called Nitrogen Fixation.

2. Nitrogen Assimilation - Along with water, plants absorb inorganic nitrogen compounds, i.e., nitrates and ammonium salts and convert them into amino acids, nucleotides and other nitrogenous compounds. Amino acids give rise to proteins. All these help in structural and functional growth of plants. Some other biochemical pathways are used to make other complex compounds containing nitrogen. These proteins and other complex compounds are subsequently consumed by animals.

3. Ammonification - The process of conversion of organic compounds like proteins and nucleic acids of dead and decaying organisms into animals is called ammonification.

4. Nitrification - The process of conversion of ammonia into nitrates is called Nitrification. The process yields energy which is used by Bacteria. Nitrification is brought by Nitrifying bacteria in soil.

5. Denitrification - Degradation of nitrates is called Denitrification. This process involves the coversion of nitrate salts present in soil or water into free molecular nitrogen.