Final answer:
The light-dependent reactions of photosynthesis produce oxygen, ATP, and NADPH, with ATP and NADPH serving as important energy carriers for the subsequent Calvin cycle.
Step-by-step explanation:
Photosynthesis is a process that converts sunlight into chemical energy and comprises two main stages: the light-dependent and light-independent (Calvin cycle) reactions. During the light-dependent reactions, which happen in the thylakoid membranes of chloroplasts, energy from sunlight is harnessed by chlorophyll and used to split water molecules. This process produces oxygen, ATP (adenosine triphosphate), and NADPH (nicotinamide adenine dinucleotide phosphate). Both ATP and NADPH are vital energy carriers that transfer the energy to the Calvin cycle for the synthesis of sugars.