CAROTENOIDS
carotenoids: translation
Accessory lipophilic photosynthetic pigments in plants and bacteria, including carotenes and xanthophylls; red, orange or yellow, with broad absorption peaks at 450-480nm. Act as secondary pigments of the light-harvesting system, passing energy to chlorophyll and as protective agents, preventing photoxidation of chlorophyll. Found in chloroplasts and also in plastids in some non-photosynthetic tissues, eg. carrot root.