Q1 / 180 · AIIMS 2018 (26 May) · Botany

Which of the following is not a derivative of cholesterol?

A
Steroid hormones
B
Vitamin D
C
Bile salts
Correct answer
D
Vitamin E

Solution

Vitamin $\mathrm{E}$ is a collective name for all stereoisomers of tocopherols and tocotrienols. The most biologically active form is $\alpha$-tocopherol. Vitamin E acts as a chain breaking antioxidant and is an efficient free radical scavenger to protect low density lipoproteins (LDLs) and polyunsaturated fats in membranes from oxidation.

Hence, the correct answer is option: 'D'.

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