Photolysis is the chemical breakdown of a molecule caused by the absorption of light. Here's an example:
The Photolysis of Water
One of the most well-known examples of photolysis is the splitting of water molecules in photosynthesis. This process occurs in the chloroplasts of plants and algae.
- Light Energy: Sunlight provides the energy for photolysis.
- Water Splitting: The light energy is absorbed by chlorophyll, a pigment in chloroplasts. This energy excites electrons in the water molecule, causing it to break down into hydrogen ions (H+), electrons (e-), and oxygen (O2).
- Oxygen Production: The oxygen released during photolysis is what we breathe.
In Summary: Photolysis is a crucial process in photosynthesis, where light energy is used to break down water molecules, releasing oxygen and providing electrons for the production of glucose.
