Photosynthesis does not take place in some parts of plants are green like flower of broccoli, fruits like papaya tender coconut, green mango. Photosynthesis occurs only in leaves of plants.The organelle of plant cells in which photosynthesis occurs in the chloroplast of plant cells. The photosynthetic pigment, chlorophyll is present in the chloroplast of the cell. It helps to absorb the solar energy. It converts the light energy into chemical energy and helps in the process of photosynthesis. The chloroplast organelle is present on the leaves of the plant.