Photosynthesis called P680. The source of electrons for photosynthesis in green plants and cyanobacteria is water. Two water molecules are oxidized by four successive charge-separation reactions by photosystem II to yield a molecule of diatomic oxygen and four hydrogen ions. The electrons yielded are transferred to a redox-active tyrosine residue that then reduces the oxidized P680. This resets the ability of P680 to absorb another photon and release another photo-dissociated electron. The oxidation of water is catalyzed in photosystem II by a redox-active structure that contains four manganese ions and a calcium ion; this oxygen-evolving complex binds two water molecules and
What Can You Do for Me 10 on 15 September. The song spent a total of 11 weeks inside the top 75 chart. In Australia, "What Can You Do For Me" did not enter the ARIA top 100 singles chart until April 1993, following its re-release after the success of "Something Good". A new version of the song remixed by Drumsound & Bassline Smith was released on 26 February 2012. What Can You Do for Me "What Can You Do For Me" is the debut single by English electronic group Utah Saints. The song was released on 12 August 1991 and reached a peak position of