Question

What happens when complex 3 is inhibited?

Answer 1

Complex 3:

1. Complex 3 is present in the electron transport chain.
2. It is found in mitochondria.
3. It is also known as Q-cytochrome C oxidoreductase or cytochrome reductase.
4. It accepts electrons from ubiquinol.
5. Later, complex 3 transfers the electrons to another electron carrier called cytochrome C.

Complex 3 inhibitors:

1. Antimycin is an inhibitor of complex 3.
2. Antimycin binds to the complex 3 and inhibits electron transfer.
3. Inhibition of complex 3 stops the electron transport chain.
4. Thus, ATP synthesis by oxidative phosphorylation is also stopped.