Which of the following is an inhibitor of Complex IV?
A)rotenone
B)oligomycin
C)antimycin
D)cyanide

Question

Quizplus · Accepted Answer

Cyanide is a potent inhibitor of Complex IV (also known as cytochrome c oxidase) in the electron transport chain, binding to the heme group in cytochrome a3 and preventing the transfer of electrons to molecular oxygen to form water. Rotenone is an inhibitor of Complex I, oligomycin inhibits ATP synthase (Complex V), and antimycin inhibits Complex III.

Which of the Following Is an Inhibitor of Complex IV