Answer:
the chloroplasts
Step-by-step explanation:
As the rest of the question states, there are many different organelles that exist within cells: the nucleus, mitochondria, and vacuoles to name a few. In plant cells, the process of photosynthesis takes place in chloroplasts, which contain chlorophyll and use, among other things, light to carry out the creation of food for the plant.
Hopefully that's helpful! If you need some more resources on cell organelles or photosynthesis/chloroplasts in particular, please let me know and I'll be happy to provide those. :)