Why Do Leaves Change Color and Fall?
They're pretty to look at, sure -- but the changing leaves you see in autumn are really a striking example of nature taking extreme measures to protect itself. Hosted by: Michael Aranda...
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The changing leaves of autumn are really awesome to look at, but they're also a really striking example of nature taking extreme measures to protect itself. You’re probably familiar with photosynthesis — it's the process plants use to turn carbon dioxide, water, and light energy into sugars and oxygen. And you probably also know that photosynthesis depends on a pigment -- a colored compound called chlorophyll -- but you may not realize that plants contain lots of other pigments, as well. Some of the most important are the carotenoids -- yellow, orange, and brown pigments that give color to things like corn, carrots, pumpkins, and sweet potatoes -- and anthocyanins, which give red and purple color to cherries, berries, pomegranates, and red apples, to...
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The changing leaves of autumn are really awesome to look at, but they're also a really striking example of nature taking extreme measures to protect itself. You’re probably familiar with photosynthesis — it's the process plants use to turn carbon dioxide, water, and light energy into sugars and oxygen. And you probably also know that photosynthesis depends on a pigment -- a colored compound called chlorophyll -- but you may not realize that plants contain lots of other pigments, as well. Some of the most important are the carotenoids -- yellow, orange, and brown pigments that give color to things like corn, carrots, pumpkins, and sweet potatoes -- and anthocyanins, which give red and purple color to cherries, berries, pomegranates, and red apples, to...
