Dark reactions | definition of dark reactions by Medical dictionary
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Any enzymatically mediated chemical reaction that takes place in the absence of light. One example is the series of light-independent reactions that produce glucose from carbon dioxide and cellular energy sources.
dark reactions or
light-independent reactions those processes in PHOTOSYNTHESIS that do not require light energy but which can occur in both light and dark conditions; the reactions involve the reduction of carbon dioxide to carbohydrate in the CALVIN CYCLE using ATP and NADPH2 formed in the LIGHT REACTIONS.