Photolysis of each water molecule in light reaction will yield
a)	2 electrons and 4 protons	b)	4 electrons and 4 protons
c)	4 electrons and 3 protons	d)	2 electrons and 2 protons

(b)

The phenomenon of breaking up of water into hydrogen and oxygen in the illuminated chloroplasts is called photolysis. Light energy, an oxygen evolving complex and an electron carrier  are required. Electron carrier  transfer the released electrons to. The oxidisedregains its electrons by the photolysis of water into , and oxygen. Oxygen is given out.

                                                       Water   Proton              Electron