Vitamin-D is synthesized in the skin by the a | vedclass

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Question

(B) Vitamin-$D$ is a steroid hormone synthesized from cholesterol derivatives. Vitamin-$D_{3}$ (cholecalciferol) is synthesized in the skin of animals

Vedclass · Accepted Answer

$7$-dehydrocholesterol

Vedclass · Answer

(B) Vitamin-$D$ is a steroid hormone synthesized from cholesterol derivatives. Vitamin-$D_{3}$ (cholecalciferol) is synthesized in the skin of animals and humans. The precursor for this synthesis is $7$-dehydrocholesterol,which is present in the epidermis. When ultraviolet $(UV)$ rays from sunlight strike the skin,they convert $7$-dehydrocholesterol into cholecalciferol (Vitamin-$D_{3}$).

Vitamin-$D$ is synthesized in the skin by the action of sunlight on:

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