Better Students Ask More Questions.
Explain the role of producers and consumers in the nitrogen cycle
1 Answer | add yours
Much of the terrestrial fixation is carried out by symbiotic bacteria in plant roots and to lesser extent by free living soil bacteria. Cyanobacteria also fix nitrogen and are much significance in aquatic systems. Some termites have mutualistic gut micro flora which fixes atmospheric nitrogen.
Specialised, widespread soil bacteria play vital roles in nitrification. Some bacteria oxidise ammonium ions to nitrite, and others complete the process by converting NO2 to nitrate. These chemoautotrophs obtain energy from such transformations. Denitrifying bacteria reduce nitrate to gaseous nitrogen in anaerobic conditions, returning a small proportion of that circulating in the biosphere to atmosphere.
Posted by orchid101 on April 21, 2013 at 2:13 PM (Answer #1)
Join to answer this question
Join a community of thousands of dedicated teachers and students.