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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.
Carotene is a lipochrome that gives carrots, squash and sweet potatoes their yellowish-orange pigmentation. Accumulation of carotene in the blood can give the skin an orange tint, particularly in areas of the body with dense subcutaneous fat or thick skin including the palms and soles.