Phase 5: Spread of disease between humans is occurring in more than one country of one WHO region. Phase 6: Community-level outbreaks are in at least one additional country in a different WHO region from phase 5. A global pandemic is under way.
Figure %: The Electron Transport Chain. The events of the electron transport chain involve NADH and FADH, which act as electron transporters as they flow through the inner membrane space. In complex I, electrons are passed from NADH to the electron transport chain, where they flow through the remaining complexes. NADH is oxidized to NAD in this process.
So sit back, relax and read. The purpose of the electron transport chain is harvesting the energy of the reduced coenzymes NADH and FADH2, which were formed in Glycolysis and the Kreb's cycle.Much of the free energy of these reduced coenzymes is transferred to ATP.ADH and FADH2 that have been formed so far transfer the hydrogen atom electrons they carry to a series of compounds, mainly proteins, which are associated with the inner mitochondrial membrane, called the Electron transport chain.