Calvin Cycle

Calvin Cycle

The Calvin Cycle is a light-independent reaction and the second stage of photosynthesis. The process begins when CO2 enters through the stomata(leaf pores) and diffuses into the stroma(inside of the chloroplasts).The way it works is that it utilizes ATP and NADPH from the light-dependent reactions to fix CO2 and build three-carbon sugars: 3-PGA, G3P, and RuBP. The main outcome of this process though is the synthesization of the sugar glucose.