oxidative phosphorylation

location

cristae

NAD and FAD

reduced NAD and FAD are passed to the electron transport chain where they release their hydrogens

Hydrogen

each hydrogen is split into its electron and proton

electrons

transferred through a series of electron carriers and energy is released as they from one high energy carrier to a low energy carrier

moving H+

some energy is used to move H+ from the matrix into the intermembrane space via proton pumps in the mitochondria

concentration gradient

higher concentration of H+ in the intermembrane space so protons move by facilitated diffusion through ATP synthase into the matrix `

chemiosmosis

electrical energy used to synthesise ATP from ADP and inorganic phosphate

result

oxygen accepts and electron and a proton is reduced to water