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Calvin cycle

in plants, a cyclical series of carbon-fixing, sugar-producing reactions in the chloroplasts. Some of the sugars (triose phosphates) are recycled, others are stored as carbohydrates. Light is not needed for these reactions, they use the carbon dioxide and energy produced in the light reactions of photosynthesis. A series of chemical reactions that occur in autotrophic animals (like plants), where organelles called chloroplasts host this reaction. After the photolysis of water, the dark Reactions occur in the calvin cycle. To learn more about photosynthesis and the calvin cycle check out the tutorial page on [[photosynthesis.