Chapter 10.15, Problem 2QQ

Interpretation Introduction

Interpretation: The Vitamin which involves cholesterol as a precursor for its synthesis has to be identified.

Concept introduction: The most important forms of Vitamin D are Vitamin ${\text{D}}_{\text{2}}$ and Vitamin ${\text{D}}_{\text{3}}$.  Vitamin ${\text{D}}_{\text{3}}$ is produced in the skin of humans and animals.