Which of the Following Molecules Inhibits Complex I of the Electron

Question

Which of the following molecules inhibits Complex I of the electron transport chain?
A) Azide
B) Amytal
C) Cyanide
D) Arsenic
E) Carbon monoxide

Accepted Answer

Amytal is a barbiturate that specifically inhibits Complex I (NADH dehydrogenase) of the electron transport chain, thereby blocking the transfer of electrons from NADH to coenzyme Q.