During the light reactions of photosynthesis carbon dioxide is a. combined with certain organic compounds to produce glucose. b. water is split through photon energy into hydrogen ions, electrons, and oxygen. c. water is split by atp into hydrogen ions, electrons, and oxygen. d. the hydrogen removed from water molecules is combined with carbon dioxide, forming glucose. e. carbon dioxide is split into oxygen and carbon atoms.

The correct answer is b water is split through photon energy into hydrogen ions,electron and oxygen.

Explanation:

During light reaction of photosynthesis light energy is absorbed by the antenna complex of photosystem 1and photosystem 2.

                The absorbed light is used to split water in proton (H+) and hydroxyl ion(OH-). The hydroxyl ion losses its electron to from hydroxyl radical(OH)

               The hydroxyl radical then undergo breakdown to form oxygen and water molecules.

  H2O=H+  +  OH-

  OH-  -e = OH

   4OH=2H2O+O2