Quick Biochemistry - Vitamins (Section 5 - No. 1)
What is needed for the process that transforms a specific substance into 25-hydroxycholecalciferol?
Cholecalciferol into 1-hydroxycholecalciferol
Cholecalciferol into 25-hydroxycholecalciferol
25-Hydroxycholecalciferol into calcitriol
Cholesterol into 7-dehydrocholesterol