Oxidative Phosphorylation

Question 1

What is the name of complex 2 in ETC and its prostetic group?

Answer 1

• Succinate Q Reductase

- -FAD, Fe-S center accepts electron via FADH and Na(H) pumps

Question 2

What is the name of Complex 3 and its prosthetic group?

Answer 2

• Q cytochrome c oxidoreductase

- -Heme Bh, Bc, C and an Fe-S center

Question 3

What is the name for complex 4 and its prosthetic group?

Answer 3

-Cytochrome c oxidase
– Heme a, a3, Cu, Cub
helps funnel 4 electrons to oxygen to form 2 water equivalents.

Question 4

What are the electron carriers in the ETC?

Answer 4

• ubiquinone (coenzyme Q)
• cytochrome C
• Iron sulfur cluster

Question 5

What is the name of complex 1 in ETC and its prosthetic group?

Answer 5

• NADH Q oxidoreductase

- -FMN, with Fe-S center that accepts electron from NADH in cytoplasm