EVERYDAY SCIENCE

Detailed explanation-1: -Fixation converts nitrogen in the atmosphere into forms that plants can absorb through their root systems. A small amount of nitrogen can be fixed when lightning provides the energy needed for N2 to react with oxygen, producing nitrogen oxide, NO, and nitrogen dioxide, NO2.

Detailed explanation-2: -Nitrogen Fixation Because plants and animals are not able to use nitrogen gas in that form. For nitrogen to be available to make proteins, DNA, and other biologically important compounds, it must first be converted into a different chemical form.

Detailed explanation-3: -The atmospheric nitrogen (N2) is fixed by the nitrogenase enzyme complex in the roots of leguminous plants through the symbiotic association with the help of specific types of some eubacteria and diazotrophic archeobacteria (Chang et al., 2009).

Detailed explanation-4: -Fixation. Nitrogen in its gaseous form (N2) can’t be used by most living things. (Plants for example, do not have the required enzymes to make use of atmospheric nitrogen.) It has to be converted or ‘fixed’ to a more usable form through a process called fixation.