Ergosterol is a precursor of vitamin

A. D₂

B. B₁

C. K

D. E

Answer: Option A

Solution(By Examveda Team)

Ergosterol is a precursor of vitamin D₂.
Ergosterol is a provitamin form of vitamin D₂; exposure to ultraviolet (UV) light causes a chemical reaction that produces vitamin D₂. It is a biological precursor of vitamin D₂, the chemical name of which is ergocalciferol.
Ergosterol is present in cell membranes of fungi, yet absent in those of animals, it is a useful target for antifungal drugs. Ergosterol is also present in the cell membranes of some protists, such as trypanosomes.