Photosynthesis is the storage of energy in carbon compounds. In photosynthesis, the sun's energy is converted to chemical energy and stored in glucose molecules. In photosynthesis, we see energy associated with electrons or being released from association of electrons. There are two pathways associated with photosynthesis: light and dark reactions. I will concentrate on the non-cyclic light reactions of photosynthesis. Light reactions are driven by light energy. This pathway produces ATP and a reduced electron carrier (NADPH + H ). The overall reaction is solar energy + 6CO + 6H O ® C H O + 6O + heat. Whereas photosynthesis takes place in specific groups of organisms, cellular respiration is done by all cells. In respiration, the energy stored in organic compounds may have been produced by the cell itself or stolen from another organism. Respiration uses oxygen from the environment to create carbon dioxide. The overall reaction for cellular respiration is C H...