Answer:
Cellular Respiration occurs in Plants and Animals while Photosynthesis occurs only in Plants. Cellular Respiration uses oxygen, Photosynthesis uses sunlight.
The products of photosynthesis are the reactants for aerobic respiration, and the products of aerobic respiration are the reactants of photosynthesis.
Photosynthesis
6CO2 + 6H2O (+ light energy) C6H12O6 + 6O2
Respiration
C6H12O6 + 6O2 --> 6CO2 + 6H2O + energy (ATP)