Answer
The Calvin Cycle is a requirement for light independent reactions in photosynthesis to occur
Step-by-step explanation
The light-independent reactions in photosynthesis convert CO2 and other compounds to form glucose. The process occurs in three stages which are; the fixation of CO2 , utilization of ATP and NADPH for reduction of 3-PGA into G3P and the regeneration of RuBP which creates conditions for more carbon dioxide fixation.