問題詳情

9. Please order the following procedures for the cholesterol biosynthesis in animals. I. Activation of isoprene units
Ⅱ. Formation of four rings of the steroid nucleus 
III. Condensation of acetate units to form mevalonate . 
IV. Formation the 30-carbon linear squalene
(A) III→I→Ⅳ→Ⅱ
(B)III→Ⅱ→Ⅳ→ I
(C)Ⅱ→III→I→Ⅳ
(D)I→Ⅱ→III→Ⅳ
(E)Ⅳ→II→I→III