Which of the following is a true statement based on the diagram CHLOROPLAST Light Enerty PHOTOSYNTHESIS CE below? CO2 Water Glucose Chemical Energy CELL RESPIRATION MITOCHONDRIA Photosynthesis occurs in the mitochondria of animal cells only. O Water is a product of photosynthesis and cellular respiration. Light energy is a reactant of both photosynthesis and cellular respiration. The products of photosynthesis are used as reactants in cellular respiration.