Cellular respiration occurs in both animals and plants. However, only plants are able to perform photosynthesis.
Cellular respiration is the process by which cells convert the energy stored in food molecules (such as glucose) into usable energy in the form of ATP (adenosine triphosphate). This process occurs in the cells of all living organisms, including animals and plants.
Photosynthesis, on the other hand, is a process that occurs in the cells of plants, algae, and some bacteria. During photosynthesis, these organisms use energy from sunlight to convert carbon dioxide and water into glucose (a sugar) and oxygen. Photosynthesis is the primary source of energy for most life on Earth, and it is an essential process for maintaining the balance of oxygen and carbon dioxide in the atmosphere.