The strawberry bush has green leaves in which photosynthesis can occur. During photosynthesis, sunlight energy is converted into chemical energy stored in carbohydrates. Photosynthesis occurs in the leaves of green plants. During photosynthesis, carbon dioxide and water are converted into glucose and oxygen using the energy of sunlight. The excess of glucose synthesized in photosynthesis is converted and stored as a starch. Thus, one energy (sun energy) is converted into another (chemical energy) in the process of photosynthesis.