Where in a plant cell is carbon dioxide consumed?

Carbon dioxide is consumed in the stroma of chloroplasts during the process of photosynthesis. The stroma is the aqueous fluid surrounding the thylakoid membranes within chloroplasts where the light-independent reactions, also known as the Calvin cycle, take place. In these reactions, carbon dioxide is fixed into organic molecules, ultimately leading to the production of glucose. This process is crucial for converting inorganic carbon into a form that can be utilized by the plant for energy and growth.

The stroma contains enzymes essential for the Calvin cycle, allowing the plant to synthesize sugars from carbon dioxide and water, using energy derived from light reactions that occur in the thylakoid membranes. Thus, understanding the function of the stroma is essential for grasping how plants harness carbon dioxide and contribute to the global carbon cycle.