The process in which carbon from CO2 is incorporated into organic molecules:

Explanation

The Calvin cycle, also known as the Calvin-Benson cycle, is a series of biochemical reactions that take place in the stroma of chloroplasts during the light-independent reactions of photosynthesis. It is named after Melvin Calvin, who played a key role in elucidating its pathway. The Calvin cycle is crucial for the synthesis of carbohydrates, such as glucose, from carbon dioxide and water, using the chemical energy stored in ATP and NADPH produced during the light-dependent reactions.