Chlorophyll is a green pigment found in plants, algae, and some bacteria, essential for photosynthesis—the process through which these organisms convert sunlight into energy. It primarily absorbs light in the blue and red wavelengths, reflecting green, which is why plants appear green. Chlorophyll exists in several forms, with chlorophyll a and chlorophyll b being the most common in higher plants. This pigment plays a crucial role in capturing solar energy and facilitating the conversion of carbon dioxide and water into glucose and oxygen.