42.

Identify this structure.

a. Folic acid.
b. Vitamin K1 (phytylmenaquinone).
c. Retinol (Vitamin A).
d. Vitamin D3 (cholecalciferol).
e. Tocopherol (Vitamin E).

Robert Williams, Dept. of Biochemistry, USUHS - bob@bob.usuf2.usuhs.mil #or bob@bob.usuf2.usuhs.mil