* Carbon dioxide (CO2): This is taken in from the atmosphere and used to build sugar molecules.
* Water (H2O): This is absorbed from the soil through the plant's roots. It is used as a source of electrons and hydrogen ions.
* Sunlight: This provides the energy needed to power the chemical reactions of photosynthesis.
The products of photosynthesis are:
* Glucose (C6H12O6): This is a simple sugar that provides the plant with energy.
* Oxygen (O2): This is released into the atmosphere as a byproduct of photosynthesis.