Cells require energy to carry out the basic everyday functions necessary for survival. This energy comes from the mitochondria, which use the electron transport chain.
The electron transport chain is located in the membranes of mitochondria. This electron transport chain is a method used by the mitochondria to send protons towards the intermembrane space. This creates a proton gradient that drives protons through ATP synthase, thus creating ATP.
This process produces only a small amount of the ATP created by the mitochondria, and its main purpose is to create a proton motive force that will drive the synthesis of ATP through cellular respiration.
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