What is Nitrogen Fixation

Question

What is nitrogen fixation?
A)The oxidation of nitrate to ammonia for assimilation.
B)The oxidation of ammonia to nitrate for assimilation.
C)The reduction of dinitrogen to ammonia for assimilation.
D)The reduction of nitrate to dinitrogen for assimilation.
E)The release of an amino group from an amino acid for assimilation.

Accepted Answer

Nitrogen fixation is the process by which atmospheric nitrogen (N2) is converted to ammonia (NH3) or other biologically useful nitrogenous compounds by certain microorganisms such as bacteria, archaea, and cyanobacteria. This occurs primarily through the reduction of dinitrogen to ammonia.