Final answer:
Photosynthesis takes place in the chloroplasts of plant cells, specifically in the stroma of the chloroplasts located in the mesophyll layer of the leaf.
Step-by-step explanation:
Photosynthesis takes place in the chloroplasts of plant cells. Specifically, the process occurs in the stroma, which is the gel-like substance inside the chloroplasts. The chloroplasts are found in the cells of the mesophyll layer of the leaf, which includes the upper epidermis. Through photosynthesis, plants convert sunlight, water, and carbon dioxide into glucose and oxygen.
Learn more about Photosynthesis in plant cells