the stepwise transfer of electrons from one carrier molecule, as a flavoprotein or a cytochrome, to another along the respiratory chain and ultimately to oxygen during the aerobic production of ATP.
(biochem) the metabolic process in mitochondria or chloroplasts, in which electrons are transferred in stages from energy-rich compounds to molecular oxygen with liberation of energy
electron transport n.
The successive passage of electrons from one cytochrome or flavoprotein to another by a series of oxidation-reduction reactions during the aerobic production of ATP, with the electrons originating from an oxidizable substrate and passing to molecular oxygen.
The movement of electrons from one electron carrier to another in a series of oxidation-reduction reactions, with each electron transferred to a slightly lower level of energy, so that energy is released. Electron transport is used in the light reactions of photosynthesis and in the final stage of cellular respiration to produce ATP from ADP and phosphate.
[ih-lek-tron-vohlt] /ɪˈlɛk trɒnˌvoʊlt/ noun, Physics. 1. a unit of energy, equal to the energy acquired by an electron accelerating through a potential difference of one volt and equivalent to 1.602 × 10 −19 joules. Abbreviation: eV, ev. /ɪˌlɛktrɒnˈvəʊlt/ noun 1. a unit of energy equal to the work done on an electron accelerated through a […]
[ih-lek-tron-vohlt] /ɪˈlɛk trɒnˌvoʊlt/ noun, Physics. 1. a unit of energy, equal to the energy acquired by an electron accelerating through a potential difference of one volt and equivalent to 1.602 × 10 −19 joules. Abbreviation: eV, ev.
electronystagmography e·lec·tro·nys·tag·mog·ra·phy (ĭ-lěk’trō-nĭs’tāg-mŏg’rə-fē) n. Abbr. ENG A study of the recorded changes in corneoretinal potential caused by movements of the eye, used to assess nystagmus.
[ih-lek-troh-ok-yuh-luh-gram] /ɪˌlɛk troʊˈɒk yə ləˌgræm/ noun, Ophthalmology. 1. a record of the changes in electrical potential that occur between the front and back of the eyeball as the eyes move between two fixed points: used to detect retinal dysfunction. Abbreviation: EOG.