Nitrogen cycle - National 4 Biology Revision

Understanding the Nitrogen cycle nitrogen cycle In an aerobic medium, organic nitrogen matter converts into ammonia salts which in turn convert into nitrites and then into nitrates by product life cycle 1 Nitrogen-fixing microbes like bacteria and blue-green algae convert nitrogen into inorganic nitrogen compounds This is called nitrogen

calvin cycle When an organism excretes waste or dies, the nitrogen in its tissues is in the form of organic nitrogen Various fungi and prokaryotes