Question

Which enzyme complex is responsible for the reduction of molecular nitrogen to the level of $N{H}_3$ in root module of legume?

• A. Aminase
• B. Nitrogenase
• C. Nitrate reductase
• D. Nitrite reductase

Answer 1

Answer: (B)

Nitrogenase

Nitrogenases are a family of metalloenzymes that catalyse a key step in the global nitrogen cycle, the adenosine triphosphate (ATP)‐dependent reduction of dinitrogen ($N_2$) to ammonia ($N{H}_3$).