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Sunday, September 21, 2014

This Chart Explains the Chemicals That Give Autumn Leaves Their Color

Click here to embiggen

Compound Interest explains the chemicals that give leaves their color both when they are green and when they change color in autumn. Further explanations are available in their post.

Leaves are green because of chlorophyll, yellow because of a combination of carotenoids and flavonoids, red because of carotenoids combined with anthocyanins, and orange when only carotenoids are present. 

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