Essential Biochemistry - Vitamins (Section 5 - No. 42)
Which of the following is a form of vitamin D?
Cholecalciferol
Ergocalciferol
25-hydroxycholecalciferol
All of the above
Wyjaśnienie
Cholecalciferol, Ergocalciferol and 25-hydroxycholecalciferol are all forms of vitamin D.