Final answer:
In stage 2 of photosynthesis, energy is used to make sugar through the process known as the Calvin cycle. This stage utilizes ATP and NADPH to convert carbon dioxide into glucose.
Step-by-step explanation:
In stage 2 of photosynthesis, energy is used to make sugar through the process known as the Calvin cycle. This stage utilizes ATP and NADPH, which are energy carriers produced in stage 1 of photosynthesis, to convert carbon dioxide into glucose. The energy from sunlight captured in stage 1 is stored in ATP and NADPH and is used in the Calvin cycle to power the synthesis of sugar molecules.