The process that balances the process of photosynthesis is cellular respiration. This is because the product that is produced by photosynthesis is used as the raw materials for the process of cellular respiration.
Photosynthesis uses carbon dioxide and water to form glucose which is used during the process of cellular respiration to get converted into carbon dioxide and water.
These processes are completely opposite of each other and is used to maintain the conservation of mass and energy.
