The nitrogen cycle.
Nitrogen fixing bacteria that live in root nodules of members of the legume family of plants. Some Nitrogen is also fixed during lightning strikes.
Clover peas lupins.
Nitrogen leaves the air when lightening strikes, which fixes nitrogen into the soil. Also, nitrogen-fixing plants like legumes have nodules of nitrogen-fixing bacteria in their roots.
Micro organisms use the ammonia from rotting food waste in a compost pile to create nitrogen that is available for plants to absorb. In a compost pile, rotting food produces ammonia and bacteria transform it into a soil nutrient, a process called nitrogen fixing. Legumes (beans) form nodules on their roots which accept nitrogen from the air and fix it in the soil through the nodules. So yes, a compost pile is part of the nitrogen cycle. It is the habitat for essential microorganisms to convert the nitrogen in ammonia into the nitrogen that plants can use to grow. The compost pile is also part of the carbon cycle in which carbon from living organisms breaks down and is converted into soil and used to build the cells of other plants. The compost pile does not demonstrate the full cycle of nitrogen or carbon, but it plays a part.
Plants absorb nitrate compounds from soil through their root hairs, which are outgrowths of the trichoblast cells in the roots.Most plants are not able to use nitrogen as such (N2), though some, including legumes and casuarinas, supply water and food to symbiotic nitrogen-fixing bacteria in specialised root nodules, and these fix nitrogen to nitrate which they supply to the plants.
nitrogen
Nitrogen. Just took the test...passed with 100
oxygen
Nitrogen cycle
Nitrogen
Plants called legumes. Actually it is the bacteria that reside in nodules contained in the legume's roots that perform the 'nitrogen fixation' biochemical process.
rhizobium
ewte
Biochemical reactions
it is rhizobium
The root nodules of leguminous plants like gram,pulses,etc. contain nitrogen-fixing bacteria,rhizobia, which help in fixing nitrogen in the soil for the plants to absorb.Nitrogen is essential for the growth of plants.
hyfj Edited answer: Through biochemical reactions under the guidance of genetic information of that cell.