This uses the 1 reduced FAD and 3 reduced NAD from the Krebbs cycle
This makes LOTS of ATP
It involves an electron transport chain and chemiosmosis (bit like in the Calvin cycle)
Oxidation of the reduced FAD and NAD means that FAD and NAD lose hydrogen. This hydrogen splits into H+ and protons and electrons
The electrons move down the ETC and lose energy as they do
This energy is used to pump protons into the intermembrane space from the mitochondrial matrix to form an electrochemical gradient- HIGHER IN SPACE THAN IN MATRIX
Protons move back into the matrix due to the gradient via ATP synthase- which phosphorylates ADP to ATP of course
The process pf ATP production is driven by protons ( remember the H+ ions) moving across a membrane due to movement of electrons- THIS IS CHEMIOSMOTIC THEORY!
Finally at the end of the transport chain protons and electrons combine with oxygen from the blood to form water
OXYGEN IS CONSIDERED TO BE THE FINAL EL