Chlorophylls are the green pigments in plants that harness the Sun's energy in photosynthesis, converting solar energy and carbon dioxide into oxygen and carbohydrates.
Chlorophylls are chelate compounds in which a magnesium ion is surrounded by a porphyrin system.
The chlorophyll molecule is chemically similar to human blood, except that its central atom is magnesium, whereas that of human blood is iron. Chlorophyll is found in all higher plants. It gives plants their green colour by absorbing red and blue-violet light and reflecting green light.