Where does the Calvin-Benson cycle take place in plant cells?

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Diagram of a tree leaf illustrating photosynthesis, with arrows showing sunlight, water, and carbon dioxide entering the leaf and sugars and oxygen being produced. A person is shown beside the tree to demonstrate the exchange of oxygen and carbon dioxide between plants and animals. — photosynthesis Diagram of photosynthesis showing how water, light, and carbon dioxide are absorbed by a plant to produce oxygen, sugars, and more carbon dioxide.

In plant cells, the Calvin-Benson cycle takes place in the stroma of the chloroplast.12

The stroma is a colorless, enzyme-rich matrix where the cycle's "dark reactions"—which include carbon fixation, reduction, and regeneration—occur. While the light reactions of photosynthesis are confined to the thylakoid membranes, the Calvin-Benson cycle utilizes the ATP and NADPH produced there to convert carbon dioxide into carbohydrates within the stroma.1324