Question

The enzyme responsible for atmospheric nitrogen fixation is:

• A. nitrogenize
• B. hydrogenase
• C. oxygenase
• D. carboxylase

Answer 1

Answer: (A)

nitrogenize

Answer 2

Enzyme nitrogenase plays a key role in $N _{2}$ fixations and remains active only during anaerobic condition. It is made up of two protein subunits : (i) non-heme iron protein or Fe-protein or dinitrogen reductase. (ii) Iron molybdenum protein or Mo-Fe protein or dinitrogenase.