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Electron Transport Chain

Which one is ...

Question

Which one is the last electron acceptor over ETC in oxidative phosphorylation?

A

H_{2}

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B

C y t a_{3}

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C

Cyt b

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D

C O_{2}

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Solution

The correct option is B $C y t a_{3}$
Iron and copper are present in cytochrome a $_{3}$ , Iron transfer electron to oxygen through copper, so cytochromea3 called terminal electron donor.
So the correct option is Cyta $_{3}$ .'

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