Question

Vital function/Role of Oxygen in ETS is :

• A. Provide $e^{-}$ to ETS
• B. Spliting of water molecules
• C. Final hydrogen acceptor
• D. Reduction of $NAD{P}^{+}$

Answer 1

The correct option is C Final hydrogen acceptor

C.Final Hydrogen acceptor

Solution : The oxygen molecule in ETS works as final hydrogen acceptor. Electrons are donated by NADH molecules and passed through several different proteins to generate the proton gradient in the intermembrane space. It thus removes the electron from the ETS .

So the correct answer is " Final hydrogen acceptor ".