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Another pigment found in the leaves of many plants is carotene. Carotene absorbs blue-green and blue light. The light reflected from carotene appears yellow. Carotene is also a large molecule (C 40 H 36) contained in the chloroplasts of many plants.
Chlorophyll absorbs the red and blue light from the sunlight that contacts the leaf. Therefore, the light reflected from or transmitted through the leaf is deficient in red and blue light, so it appears green to our eyes. Green is the type of light used the least by chlorophyll.When a leaf has a high concentration of chlorophyll relative to other pigments, the leaf appears green. Carotinoids absorb the blue-green and blue light from the sunlight that contacts the leaf.Light reflected by carotinoid pigments appears yellow or yellow-orange to our eyes.nthocyanins absorb blue, blue-green and green light. When leaves contain high concentrations of anthocyanins relative to other pigments, the leaves appear red or purple to our eyes. Anthocyanin pigments are involved in the red skin of apples, and the purple color of grapes.