Electron-transport chain

Definition

The electron-transport chain is a series of protein complexes and small molecules within the mitochondrial membrane that transfer electrons, derived from nutrients, to molecular oxygen, creating a proton gradient used to produce ATP. This process is essential for aerobic respiration and plays a critical role in the body's energy production.

Related terms

ATP synthase: An enzyme that synthesizes ATP, utilizing the proton gradient established by the electron-transport chain.

Mitochondrial membrane: The double-layered membrane surrounding mitochondria, involved in energy production through processes like the electron-transport chain.

Aerobic respiration: A metabolic process in cells involving oxygen consumption to generate energy from nutrients, prominently featuring the electron-transport chain