Q. What are the chemical substances produced by water photolysis and what is the destination of each of those substances?
Free electrons, molecular oxygen and hydrogen ions are liberated, after the water photolysis.
The electrons will restore those electrons lost by chlorophyll molecules in photophosphorylation. The hydrogen ions will be incorporated into hydrogen acceptor molecules NADP and later will be used in the synthesis of glucose during the chemical phase. Molecular oxygen is liberated to the atmosphere.