What is the purpose of carotene and xanthophyll in plants?
Carotene and Xanthophyll are types of plant pigments that plays a role in the metabolism of plants.
Xanthophyll -> These are the yellow pigment of the leaves and are classified as accessory pigments which absorbs the wavelength that chlorophyll cannot absorb. They serve as protection to excessive amount of sunlight to prevent further damage in the plant. Three kinds of xanthophyll are known: canthaxanthin, zeaxanthin and lutein. They are also considered antioxidants.
Carotene -> These are orange photosynthetic pigments found in plants and plays an important role in photosynthesis. They transmit the light energy that they absorb from chlorophyll. They also protect the plant by absorbing the energy of the singlet oxygen produced during the photosynthesis. There are four kinds of carotene known: alpha and beta carotene, lycopene and rhodopsin. Similar to xanthophylls, they have antioxidant properties.
check Approved by eNotes Editorial