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Typically, atmospheric nitrogen gets into the soil by nitrogen-fixing bacteria that are symbiotic with such plants as clover, soybeans and alfalfa. Bacteria in the plant extract nitrogen from the air, and when the plants die, the nitrogen remains in the soil as the plant decays.
some plants have bacteria in their roots which contain nitrogen when plants want nitrogen they exchange their food made them with nitrogen. Example: pea plants contain bacteria called rhizobium which contains nitrogen
Rhizoobium or nitrogen fixing bacteria lives in the roots of leguminous plants.leguminous plants are not able to use atmospheric nitrogen as sush,so these bacteria convert nitrogen into simpler forms i.e nitrates and nitrits which are easily used up by these plants.
Carbon dioxide and atmospheric nitrogen enable plants to carry on photosynthesis
Nitrogen
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photosynthesis
Plants get it from bacteria which live associated with their roots who take atmospheric nitrogen and fixate it (nitrogen cycle). Animals can only get it by ingesting organic compounds which contain nitrogen, such as plants and other animals which have eaten plants.
Plants can not use atmospheric nitrogen. Rhizobacteria fixes atmospheric nitrogen into nitrate.plant can utilize nitrate in their metabolism.thus fertility of the soil is maintained.
Plants take in nitrogen from their roots then the consumers eat the plants.
nitrogen fixing bacteria
Bacteria convert atmospheric nitrogen into a nitrogen-containing ion that plants can absorb.
Typically, atmospheric nitrogen gets into the soil by nitrogen-fixing bacteria that are symbiotic with such plants as clover, soybeans and alfalfa. Bacteria in the plant extract nitrogen from the air, and when the plants die, the nitrogen remains in the soil as the plant decays.
some plants have bacteria in their roots which contain nitrogen when plants want nitrogen they exchange their food made them with nitrogen. Example: pea plants contain bacteria called rhizobium which contains nitrogen
Animals obtain nitrogen by eating plants which have absorbed nitrogen from the soil.
they are found on the roots of plants and are grouping of bacteria that help convert atmospheric nitrogen to nitrogen plants can utilize
The only forms of nitrogen compounds that living things can make use of are ammonia compounds and nitrate compounds.These are called "fixed nitrogen". Animals obtain the nitrogen they need from proteins in the plants and/or animals they eat. Proteins are amino acid polymers and amino acids are built around an ammonia group.