Question

Which one of the following is the correct sequence of cytochromes in the order of their participation in the respiratory chain?

Options

• Cyt.b-c₁ → Cyt.c → Cyt.a → Cyt.a₃

• Cyt.a → Cyt.a₃ → Cyt.b-C₁ → Cyt.c

• Cyt.b-c₁ → Cyt.a₃ → Cyt.a → Cyt.c

• Cyt.a₃ → Cyt.a → Cyt.b-c₁ → Cyt.c 

Answer 1

Cyt.b-c₁ → Cyt.c → Cyt.a → Cyt.a₃

Explanation:

Cytochrome in the respiratory chain is b-c₁, c, a, a₃ Which ultimately leads to terminal oxidation.