The final electron acceptor of mitochondria is

Pyruvate.

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NADP.

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_{2}

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OAA (oxalo acetic acid).

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Solution

The correct option is C O $_{2}$ .
In the Electron Transport Chain, electrons are transferred from one complex to the other. Cytochrome c oxidase complex, the last complex in the chain comprises of cytochrome a and cytochrome a3. Cytochrome a3 possesses copper that helps transfer electrons to oxygen. Oxygen is the ultimate electron acceptor wherein it becomes reactive and combines with protons to form metabolic water.

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