Cellular Respiration occurs in the Mitochondria and creates ATP energy... The reactants I know of for photosynthesis are CO2, and H2O, and the products are O2 and C6H12O6 or Glucose. Reactants of Cellular Respiration are Glucose and 02. The products I know of are C02 and ATP (Adenosine tri-phosphate) Energy... Hope this helps
