Answer:
Both processes use and produce ATP in reactions that are carried out on membranes and are controlled by enzymes. Photosynthesis and respiration both involve cycles of reactions, involving redox reactions. The processes both use the same coenzymes, such as NAD and NADP.
Step-by-step explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.