Answer:
Mitochondria and the chloroplast
Explanation:
Electron transport refers to the transfer of of electrons from electron donors to electron acceptors via a reduction-oxidation reaction.
In the mitochondria the process is called Oxidative phosphorylation whereas in the Chloroplast it is called Photo-phosphorylation since it utilizes light.
Chemiosmotic mechanisms allow the movement of ions across a semi-permeable membrane down their electrochemical gradient.
In both mitochondria and chloroplast,have these mechanisms for the production of ATP .