21. Only methanogenesis and fermentation can occur in the absence of electron acceptors other than carbon. 22. Thus, the products are chlorite, an oxidized electron acceptor ( denoted A ), and water. 23. All organisms obtain energy by transferring electrons from an electron donor to an electron acceptor . 24. It uses tetrachloroethylene and trichloroethylene as electron acceptors . 25. And, because it " accepts " electrons, the oxidizing agent is also called an electron acceptor . 26. Organic photovoltaics are made of electron donor and electron acceptor materials rather than semiconductor p-n junctions. 27. As discussed below, the use of terminal electron acceptors other than oxygen has important biogeochemical consequences. 28. It uses arsenate as its terminal electron acceptor . 29. In non-cyclic photophosphorylation, ferredoxin is the last electron acceptor thus reducing the enzyme NADP + reductase. 30. Oxygen is the electron acceptor and is depleted.
