Which enzyme complex is responsible for the reduction of molecular nitrogen to the level of NH3 in
root module of legume?
(c) Nitrate reductase
(d) Nitrite reductase
(b) The enzyme nitrogenase reduce molecular nitrogen to NH3 in root nodule of legume, Nitrogenase is a complex system consisting of two major protein components a MoFe protein and Fe protein. The MoFe protein joined with one or two Fe protein. The MoFe protein contain two atom of molybdenum and 28-32 atom of iron while the Fe protein has 4 atom of iron.