4. what do you suppose would happen if this experiment was repeated with a flashlight covered in red cellophane (like a lollipop wrapper)? what about purple cellophane? explain your answer. (try this variation of the experiment if you can.)

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.