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.
If these electrons were all actors in cellular respiration, this would be their time to shine. The electron transport chain is the third stage of cellular respiration. Four protein complexes in the inner mitochondrial membrane form the electron transport chain.These complexes exist in a descending order of energy.Here the electron carriers come along to drop off all their electron and proton cargo that they picked up during the glycolysis and citric acid cycle stages.our protein complexes in the inner mitochondrial membrane form the electron transport chain. These complexes exist in a descending order of energy. Here the electron carriers come along to drop off all their electron and proton cargo that they picked up during the glycolysis and citric acid cycle stages.