Question
The enzyme responsible for atmospheric nitrogen fixation is
nitrogenase
hydrogenase
oxygenase
carboxylase
Solution
A.
nitrogenase
Enzyme nitrogenase plays a key role in N, 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
