Which pigment is necessary in order for plants to convert carbon dioxide and water, in the presence of sunlight, into oxygen and glucose?
Chlorophyll
Plants use a green coloured pigment called chlorophyll along light to make food. Melanin is the pigment found in human skin that gives it its distinctive colour. Haemoglobin is the protein in blood that carries oxygen. Carotenoid is a pigment that gives colour to fruits.