Q.Write the role of nitrogenase enzyme in nitrogen fixation?

Step 1. Nitrogen fixation is defined as the conversion of atmospheric nitrogen (N2) into ammonia, and nitrogenase is the specific enzyme complex that carries out this conversion.

Step 2. Mechanically, nitrogenase progressively reduces the di-nitrogen molecule by adding pairs of hydrogen atoms, which cleaves the strong triple bond between the two nitrogen atoms and ultimately yields ammonia.

Step 3. This reaction requires several inputs: ATP as the energy source, electrons, glucose-6-phosphate as the hydrogen donor, and the cofactor minerals molybdenum, iron and sulphur, which are structural or catalytic components of the enzyme complex itself. …

Describe nitrogenase's substrate, product, required cofactors/energy inp …

• Naming nitrogenase's product as nitrate instead of ammonia. …