Assertion :Cytochrome oxidase enzyme contains copper Reason: Cyanide combines with copper of cytochrome oxidase and prevents oxygen combining with it

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The final stage of respiratory chain involves cytochrome oxidase which contain copper. This stage can be specifically inhibited by cyanide or carbon monoxide Cyanide combines with the copper and prevents oxygen combining with it.

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