Assertion :Complex II and complex III of ETS are NADH dehydrogenase and cytochrome oxidase complex respectively. Reason: Cytochrome c acts as a mobile carrier for transfer of electron between complex II and III.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is D Both Assertion and Reason are incorrect
Complex II of ETS is succinate dehydrogenase complex and complex III of ETS is cytochrome $b c_{1}$ complex.
Cytochrome c is a small protein attached to the outer surface of the inner mitochondrial membrane and acts as a mobile carrier for the transfer of electrons between complexes III and IV.
So, the correct answer is option D.

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