biological pigment
substance produced by living organisms that has a color resulting from selective color absorption
visual pigment
substances that function in light reception by animals by transforming light energy into electrical (nerve) potentials
luciferin
class of compounds
melanin
group of natural pigments found in most organisms
carotenoid
class of chemical compounds
photosynthetic pigment
pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for photosynthesis
accessory pigments
class of compounds
carotene
class of compounds