zh-hans:粒线体中的电子传递链。

zh-hans:典型真核生物细胞的呼吸作用过程总览

电子传递链又称呼吸链，是氧化磷酸化的一部分，位于原核生物细胞膜或者真核生物的粒线体内膜上，叶绿体在类囊体膜上所进行的进行光合磷酸化过程，高能电子在膜上一系列蛋白发送的过程，借由膜蛋白的氧化与还原将其能量逐渐释放出来，造成膜外与膜内质子浓度的差异(proton-gradient)，而这些质子再由高浓度往低浓度运送，及一对质子（H+离子）的转移这电子转移穿膜，这产生的电化学质子浓度的差异驱动ATP合成，或形成化学能三磷酸腺苷（ATP）的产生。电子在电子传递链中的最终受体是氧分子。

An electron transport chain (ETC) is a series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of adenosine triphosphate (ATP), a molecule that stores energy chemically in the form of highly strained bonds. The molecules of the chain include peptides, enzymes (which are proteins or protein complexes), and others. The final acceptor of electrons in the electron transport chain during aerobic respiration is molecular oxygen although a variety of acceptors other than oxygen exist in anaerobic respiration.