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printer
on Aug 20, 2012
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First evidence for photosynthesis in insects
Just curious: why isn't the making of vitamin D by the human skin called photosynthesis?
__alexs
on Aug 20, 2012
[–]
Photosynthesis is predominantly powered by red and blue visible light. The manufacture of Vitamin D in our skin is triggered by UV. Also in humans Vitamin D is not an energy source, unlike the sugars commonly produced by photosynthesis in plants.
printer
on Aug 20, 2012
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parent
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Thanks. This article is also clear about the differences:
http://en.wikipedia.org/wiki/Photochemistry
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