ATP-  In the light reactions, energy from sunlight drives the synthesis of ATP and NADPH, coupled to the formation of O₂ from H₂O
ADP-ADP can be converted, or powered back to ATP through the process of releasing the chemical energy available in food
Chlorophyll-the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.
Glucose-Plants use the energy of the sun to change the water and carbon dioxide into a sugar called glucose
NADP+-Nicotinamide adenine dinucleotide phosphate, a cofactor used in anabolic reactions, such as the Calvin cycle and lipid and nucleic acid syntheses, which require NADPH as a reducing agent.
carbon dioxide-Carbon dioxide (CO₂) is an important heat-trapping gas, or greenhouse gas, that comes from the extraction and burning of fossil fuels.
the equation for photosynthesis- 6CO2 + 6H2O →C6H12O6 + 6O2
Electron Transport Chain- 4 protein complexes that create ATP
variables-an element, feature, or factor that is liable to vary or change.

Photosystem I- membrane protein complex that uses light energy to transfer electrons
Photosystem II- the first membrane protein complex