THE MAIN EVENTS OF PHOTOSYNTHESIS
1. Light is absorbed by the leaf’s chloroplasts.
2. The light energy is used to split water molecules.
3. The break up of water releases oxygen, electrons and protons (H+, H ions)
a. The electrons go to the chlorophyll.
b. The protons are stored in the chloroplast.
c. The oxygen passes from the chloroplast. Some will be used by the mitochondria for aerobic respiration and the remainder will be passed into the atmosphere.
4. Some of the light energy is carried to the chlorophyll to form high energy electrons.
5. The high energy electrons and the stored protons combine with carbon dioxide to form glucose. (C6H12O6)
This diagram represents the 5 events listed above: