Oxygen-evolving complex

The oxygen-evolving complex (OEC) is a part of the photosynthesis process in plants, algae, and some bacteria, located within the chloroplasts. It is responsible for splitting water molecules into oxygen, protons, and electrons, a process essential for producing the energy-rich molecules that power life. The OEC contains a cluster of manganese and calcium atoms that facilitate this water-splitting reaction, releasing oxygen as a byproduct. This process helps restore the plant's ability to gather energy from sunlight, supporting growth and other vital functions. In essence, the OEC is Nature’s innovative system for generating oxygen and sustaining life on Earth.