Assertion :Proton gradient is required for ATP synthesis. Reason: Two protons entering an elementary particle knocks out one oxygen of phosphate make it energy rich reactive phosphate for combining with ADP.

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 C Assertion is correct but Reason is incorrect
The proton gradient is produced during the electron transport chain inside the matrix of mitochondria. This proton gradient is required for synthesis of the energy-rich molecule, ATP. The energy which is obtained from the passage of electrons through ETC is used to transport protons across the inner mitochondrial membrane. Four protons entering an elementary particle knocks out one oxygen of phosphate make it energy-rich reactive phosphate for combining with ADP.
Thus, the correct answer is option C.

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