DENDROLOGY

Detailed explanation-1: -The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide. Energy is required to split water molecules into hydrogen and oxygen. This occurs in the step of the photosynthetic reaction where carbon dioxide combines with water.

Detailed explanation-2: -The process of Photosynthesis produces ATP from ADP and Pi by using the energy from light to excite electrons that are passed along an electron transport chain. Coupled with the transfer of electrons is the pumping of hydrogen ions and the splitting of water molecules.

Detailed explanation-3: -In this reaction, the light energy from the sun is absorbed by the chlorophyll in the thylakoid membrane of the chloroplasts. This energy breaks the water molecule to release oxygen and hydrogen. The hydrogen ions released during the photolysis of water are picked up by a compound NADP to form NADPH.