Term Name:	oxygen evolving activity
Synonyms:	photosynthetic water oxidation
Definition:	Catalysis of the reaction: 2 a plastoquinone + 4 hnu + 2 H2O = 2 a plastoquinol + O2. The evolution of oxygen from oxidizing water is carried out by the oxygen evolving complex in photosystem II of plants.
Ontology:	GO: Molecular Function [GO:0010242]    QuickGO    AmiGO