Iron,_____,and sulfur form the reactive portion of nitrogenase,a biological catalyst used by nitrogen-fixing organisms.
A) calcium
B) cobalt
C) zinc
D) cadmium
E) molybdenum

Question

Quizplus · Accepted Answer

Nitrogenase contains iron, molybdenum, and sulfur as the reactive portion. The other options (calcium, cobalt, zinc, and cadmium) are not found in the reactive portion of nitrogenase.

Iron,_____,and Sulfur Form the Reactive Portion of Nitrogenase,a Biological Catalyst