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Final electron acceptor in ETS is

Final electron acceptor in ETS is

Options

(a) NAD
(b) FAD
(c) Oxygen
(d) Hydrogen

Correct Answer:

Oxygen

Explanation:

Oxygen is the last electron acceptor of respiratory chain. In electron transport system, electrons pass by turn to cytochrome-c to cytochrome a-a₃ and at the end of this chain 2 electrons, 2 protons and 1/2 O₂ molecule combine to form one molecule of water.

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