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OpenStudy (anonymous):
how can the sun rays transfer into vitamin D in our body
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OpenStudy (anonymous):
Ultraviolet-B light strikes the skin where there is a zoosterol called 7-dehydrocholesterol. 7-dehydrocholesterol reacts to the UVB light and converts into Vitamin D3.
OpenStudy (anonymous):
what s the meaning of zoosterol ? kind of lipid?
OpenStudy (anonymous):
how about ultraviolet-A?
OpenStudy (anonymous):
Ultraviolet-A doesn't interact with 7-dehydrocholesterol. And a zoosterol is a kind of cholesterol precursor.
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