The Formation of Vitamin D (Cholecalciferol) from -Dehydrocholesterol Requires

question 51

Multiple Choice

The formation of vitamin D (cholecalciferol) from -dehydrocholesterol requires

• A) a photochemical step.
• B) a hydroxylation in kidney.
• C) a hydroxylation in liver.
• D) hydroxylation in both kidney and liver.
• E) ingestion of 1,25 dihydroxycalciferol.

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