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 Do I Have to Do Amazon.co.uk, "Her most outrageous but greatest video moment is where she parodies certain movie stars in the chic video for "What Do I Have to Do?", and because of her heavy eye make-up almost earns herself the title drag-queen Kylie (watch out for sister Dannii who briefly stars in the video, wearing a blonde wig)." These are the formats and track listings of major single releases of "What Do I Have to Do". Minogue performed the song on the following concert tours: The song was also performed on: What Do I Have to Do "What Do I Have to Do"