The 2 GIFs above show a life-like animation of the Electron Transport Chain & ATP Synthase
The 3 GIFs above show animated versions as well Pay particular attention to:
- The donation of electrons by NADH (& FADH2)
- The active transport of H+ ions into the intermembrane space
- The final electron accepting by oxygen to become water
- The flow of H+ ions back through ATP Synthase
- The creation of ATP from ADP by ATP Synthase
Notice the rotation of ATP Synthase and the formation of ATP (small purple molecule) from ADP (small blue molecule).
Albeit extra details, these 2 GIFs show how the rotation of ATP Synthase opens up active sites that bond to ADP and a phosphate group and then physically join the two together for form ATP which is then released.