<P> The enzymes in the Calvin cycle are functionally equivalent to most enzymes used in other metabolic pathways such as gluconeogenesis and the pentose phosphate pathway, but they are found in the chloroplast stroma instead of the cell cytosol, separating the reactions . They are activated in the light (which is why the name "dark reaction" is misleading), and also by products of the light - dependent reaction . These regulatory functions prevent the Calvin cycle from being respired to carbon dioxide . Energy (in the form of ATP) would be wasted in carrying out these reactions that have no net productivity . </P> <P> The sum of reactions in the Calvin cycle is the following: </P> <Dl> <Dd> 3 CO + 6 NADPH + 6 H + 9 ATP → glyceraldehyde - 3 - phosphate (G3P) + 6 NADP + 9 ADP + 3 H O + 8 P (P = inorganic phosphate) </Dd> </Dl> <Dd> 3 CO + 6 NADPH + 6 H + 9 ATP → glyceraldehyde - 3 - phosphate (G3P) + 6 NADP + 9 ADP + 3 H O + 8 P (P = inorganic phosphate) </Dd>

What is one role of atp in the light-independent reaction of photosynthesis