Question

Mineral associated with cytochrome is

• A. Cu
• B. Mg
• C. Fe and Mg
• D. Fe and Cu

Answer 1

Answer: (D)

Fe and Cu

Cytochromes are iron-containing protein. It helps in the generation of ATP by electron transport chain. It helps in the transfer of electrons by oxidation and reduction. The iron present in the cytochrome gets converted into Fe${}^{{}_2+}$into Fe${}^{{}_3+}$. It also transfers electrons between complex III and complex IV during electron transport chain. Cytochrome oxidase is a metalloprotein, integral to the mitochondrial membrane, which contains copper and iron.

So, the correct answer is option D.