<Tr> <Td> <P> Succinate + Q ⟶ Fumarate + QH 2 (\ displaystyle (\ ce ((Succinate) + Q -> (Fumarate) + QH2))) </P> </Td> <Td> <Table> <Tr> <Td> <P> </P> </Td> <Td> <P> </P> </Td> <Td> <P> </P> </Td> </Tr> <Tr> <Td> <P> </P> </Td> </Tr> </Table> </Td> <Td> <P> (2) </P> </Td> </Tr> <P> Succinate + Q ⟶ Fumarate + QH 2 (\ displaystyle (\ ce ((Succinate) + Q -> (Fumarate) + QH2))) </P> <Table> <Tr> <Td> <P> </P> </Td> <Td> <P> </P> </Td> <Td> <P> </P> </Td> </Tr> <Tr> <Td> <P> </P> </Td> </Tr> </Table> <Tr> <Td> <P> </P> </Td> <Td> <P> </P> </Td> <Td> <P> </P> </Td> </Tr>

Where does the phosphate come from in oxidative phosphorylation