Antimycin a Blocks Electron Transfer Between Cytochromes B and C₁

question 57

Multiple Choice

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 of the following would be found in the oxidized state?

• A)Coenzyme Q
• B)Cytochrome a₃
• C)Cytochrome b
• D)Cytochrome e
• E)Cytochrome f

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