There are two reactants in the chemical reaction equation given for photosynthesis. Name each reactant, and name the stage that uses that reactant.

1.
Name of reactant:
Name of stage that produces it:

2.
Name of reactant:
Name of stage that produces it:

Thank you!

1. The reactant in photosynthesis is carbon dioxide (CO2).

The stage that uses carbon dioxide is called the Calvin cycle (also known as the dark reaction or the light-independent reaction).

2. The other reactant in photosynthesis is water (H2O).
The stage that uses water is called the light-dependent reaction (also known as the light reaction).