Succinate is oxidised to fumarate in Krebs cycle by

Removal of hydrogen

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Loss of electrons

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Addition of oxygen

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Removal of oxygen

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Solution

The correct option is B Removal of hydrogen
In the Krebs cycle, succinate is oxidized to form fumarate by removal of 1 hydrogen.
Here the enzyme used is succinate dehydrogenase and also a coenzyme FAD is used which gets converted to FADH. In this process, 1 molecule of water is also released.
So, the correct option is 'Removal of hydrogen'

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