Antimycin A blocks electron transfer between cytochromes b and c₁. If intact mitochondria were incubated with antimycin A, excess NADH, and an adequate supply of O₂, which compound would be found in the oxidized state? A) coenzyme Q B) cytochrome a₃ C) cytochrome b D) cytochrome e E) cytochrome f

Question

Quizplus · Accepted Answer

Antimycin A specifically blocks electron transfer between cytochromes b and c1, so the electron transfer between cytochrome c1 and cytochrome a would still be intact. Therefore, cytochrome a would be found in the oxidized state.

Antimycin a Blocks Electron Transfer Between Cytochromes B and C1

Antimycin a Blocks Electron Transfer Between Cytochromes B and C₁