Chlorophyll is a green pigment found in plants and cyanobacteria, which are bacterial organisms that make their own food. This pigment absorbs light energy for use in photosynthesis.
Chlorophyll is found in the chloroplasts of plant cells. Although chlorophyll is a green pigment, it does not absorb green light. Instead, it absorbs red and blue light, which are used in the process of photosynthesis. During photosynthesis, the chlorophyll uses energy from the sun to convert water and carbon dioxide into sugar. This process uses six molecules of water and six molecules of carbon dioxide to produce one sugar molecule and six molecules of oxygen.