What is the dark phase

Photosynthesis is the process that converts energy from sunlight into energy in food. In the dark phase, the ribulose bisphosphate added to the carbon dioxide gas (CO2) in the air results in the production of organic compounds.

Any of the chemical reactions that take place during the second stage ofphotosynthesis and do not require light. During the dark reactions, energyreleased from ATP (created by the light reactions) drives the fixation ofcarbon from carbon dioxide in organic molecules. The Calvin cycle formspart of the dark reactions. As long as ATP is available, the dark reactionscan occur in darkness or in light.