* ATP (Adenosine triphosphate): This is the energy currency of the cell.
* NADPH (Nicotinamide adenine dinucleotide phosphate): This is a reducing agent, carrying high-energy electrons.
* Oxygen (O2): This is a byproduct of the light reactions, released into the atmosphere.
The light reactions use light energy to create these products, which are then used in the Calvin cycle (dark reactions) to convert carbon dioxide into sugar.
