What Are The Reactants Of Photosynthesis? Carbon Dioxide And Hydrogen Hydrogen, Oxygen, And Water Light Energy, Water, And Carbon Dioxide Oxygen And Glucose. Photosynthesis, a crucial process in plant life, involves complex chemical reactions that transform certain substances into others. These reactants are converted into glucose and oxygen in the presence of sunlight and chlorophyll.

The reactants of photosynthesis are everything to the left of the “———>” arrow, thus the reactants of photosynthesis are carbon dioxide, water, and sunlight energy. The main reactants in photosynthesis are carbon dioxide and water. These reactants are converted into glucose and oxygen in the presence of sunlight and chlorophyll.