Electron transport chain is the final step of the aerobic respiration which takes place in the inner mitochondrial membrane.
This chain helps in the formation of the ATP molecules as it is embedded with the ATP synthase.
The aerobic respiration is called the aerobic respiration as it uses the oxygen only in the final step of the ETS where oxygen combines with the free hydrogen ions to form metabolic water.
Some heart arrhythmias do not need treatment. Heart arrhythmia treatment is usually only needed if the irregular heartbeat is causing significant symptoms, or if the condition is putting you at risk of more-serious heart problems.