Nitrogen fixation is how atmospheric nitrogen is processed. This occurs during lightning strikes but mainly is processed by diazotrophs, or free living bacteria with nitrogenase.
the lightning breaks the atmosphere down to get nitrogen to the ground to aid in plant growth
Humans and most other living things are unable to use nitrogen from the atmosphere in their metabolism. The only living things able to use nitrogen from the atmosphere in their metabolism are a small number of species of anaerobic nitrogen fixing bacteria. Several species of nitrogen fixing bacteria are symbiotic with legume plants, the bacteria provide the legume with fixed nitrogen, the legume provides the bacteria isolation from the poisonous oxygen in the air as well as carbohydrates as food. Humans as all other animals, get their fixed nitrogen by eating other animals and/or plants.
Decomposers have a very important role in the nitrogen cycle. They convert nitrogen found in other organisms into ammonia so it can be returned to the soil. Some use a process called denitrification to return nitrogen directly to the atmosphere.
By digestion, which breaks down the plant proteins into their constituent amino acids (which are made up in part of Nitrogen), and then using those amino acid building blocks to manufacture the specific proteins their own bodies need.
Lactase is the enzyme that breaks down lactose.
The dead animals and plants remain organs breaks down and that remains turn into carbon.
Bacteria breaks down and converts other living and dead organisms into food. If it werent for bacteria and detritus feeders the earth would be scattered with dead animals and trees
bacteria
The atmosphere is held to the earth by gravity and is made of gas = it cannot therefore break.
you die.
first the organism is broken down in to inorganic moleculs, then denitryfing bacteria breaks this down and lets the nitrogen be released back to the atmosphere. the denitryfing bacteria is usaully cyno-bacteria(blue green bacteria)
Nitrogen is produced when the body breaks down proteins for energy.