Question

The complex with cytochromes $b,c_1$ is _____.

• A. Cytochrome c reductase
• B. Cytochrome c oxidase
• C. Succinic dehydrogenase
• D. NADH-Q reductase

Answer 1

The correct option is A Cytochrome c reductase

Complex III or cytochrome c reductase which possesses cytochromes $b,c_1$, is associated with the transfer of the electrons from ubiquinol to cytochrome c molecule. The electron centres b accepts electrons from ubiquinol and gives it to c1, which then transfers it on to a cytochrome c molecule.