Question

What is the role of O2 in electron transport chain (ETC)?

Answer 1

Answer:

here mate answer is that

Explanation:

There are a lot of parts and pieces involved in the electron transport chain, but with respect to Oxygen, the simple answer is Oxygen is the place where the electrons go, it i sthe thing that gets reduced.

Oxygen sits at the end of the electron transport chain, where it accepts electrons and picks up protons to form water.

Answer 2

Dear Student,

◆ Role of oxygen in ETC -

Oxygen is last electron acceptor in electron transport chain. It combines with hydrogen to form water at the end.

● Electron transport chain -

• Electron transport system is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons across a membrane.

Electron transport system contains 4 complexes -

1) Complex I - NADH dehydrogenase

• Redox groups - FMN & Fex

2) Complex II - Succinate CoQ-reductase

• Redox groups - FAD & FeS

3) Complex III - CoQ cyt.c reductase

• Redox groups - Hemes & FeS

4) Complex IV - Cytochrome oxidase

• Redox groups - Hemes, CuA & CuB

Hope this helped you. Thanks for asking..