electron carrier, electron transporter activity, electron acceptor activity, electron donor activity
Alternate IDs
GO:0009054, GO:0009053
Definition
Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
Source:ISBN:0198506732
Comment
Note that this term should only be be used for electron transfer that generates a transmembrane electrochemical gradient, e.g. components of the respiratory or photosynthetic electron transport chain.