Final answer:
Chloroplasts are associated with photosynthesis, where they convert light energy into chemical energy, producing glucose and oxygen.
Step-by-step explanation:
The function associated with chloroplasts is photosynthesis. Chloroplasts are organelles found in the cells of plants and some other organisms that harness the energy of sunlight to convert carbon dioxide and water into glucose and oxygen, a process essential for the survival of the plant, and by extension, the oxygen-dependent life on Earth. This process not only contributes to the production of vital organic compounds but also plays a critical role in the regulation of atmospheric oxygen levels.