The immediate product of the Calvin cycle is H2O ATP Glucose Sucrose G3P In photorespiration NADH is produced ATP is produced CO2 is consumed O2 is consumed light is not required Solution 1. G3P. In calvin cycle Rubilose 1,5 bisphosphate + CO2 and water transfer to 3-phospho glycerate by RUBISCO.. 3-phospho glycerate to 1,3 bisphosphoglycerate by ATP and finally turned to Glyceraldehyde 3 phosphate. It is the first product derived from the CO2. 2. CO2 is consume . NADPH and ATP are consumed in the process. Light is required for calvin cycle..