Question

Draw nitrogen cycle? Explain the different steps.

Answer 1

Steps include are;-

• The first steps are Ammonification -a process in which organic nitrogen of plants and animals after their death is converted to ammonium ions.
  
• Second step nitrification -ammonium ions are converted to nitrate.
  
• The third step is nitrogen uptake by plants -nitrate formed in process Nitrification is used by most plants as mineral metabolites and may be converted by them into amino groups and other nitrogen-containing compounds.
  
• The fourth step is the fixation of Nitrogen - the reduction of atmospheric nitrogen to the ammonium ion is called nitrogen Fixation.
  
• The fifth step is Denitrification - the reduction of nitrates to nitrogen gas or nitrous oxide by certain microorganisms.