In vitamin D metabolism, which version of vitamin D is produced by the liver and then transported to the kidney?

Question

Quizplus · Accepted Answer

7-Dehydrocholesterol is one of the vitamin D precursors in the skin that undergoes transformation to cholecalciferol when the skin is exposed to ultraviolet light.Cholecalciferol travels to the liver, where it undergoes its first hydroxylation, yielding 25-hydroxycholecalciferol.This form, the version most common in blood circulation, travels to the kidney for the second hydroxylation, producing the final active form, calcitriol.

In Vitamin D Metabolism, Which Version of Vitamin D Is