Final answer:
The energy from the light reactions is carried to the Calvin cycle by ATP and NADPH.
Step-by-step explanation:
The energy from the light reactions is carried to the Calvin cycle by the molecules ATP and NADPH. During the light reactions, sunlight is absorbed by chlorophyll in the thylakoid membrane, leading to the production of ATP and NADPH. These energy-carrying molecules then move into the stroma, where the Calvin cycle takes place.