* ATP (Adenosine triphosphate): This is the primary energy currency of cells. It stores chemical energy in the form of high-energy phosphate bonds.
* NADPH (Nicotinamide adenine dinucleotide phosphate): This is a reducing agent, meaning it carries high-energy electrons that can be used to power the light-independent reactions (Calvin cycle) to build sugars.
These two energy carriers are produced by the light-dependent reactions using energy from sunlight. They are then used in the Calvin cycle to convert carbon dioxide into glucose, the main fuel source for most living organisms.
