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How can animals convert beta-carotene into vitamin A?
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Isoprenoid
Camphor, an isoprenoid compound classified as a terpenoid ketone, is used in incense and certain medicinal compounds. It is a natural substance obtained from the camphor laurel (Cinnamomum camphora), a species of evergreen.
Most animals are able to convert beta-carotene into vitamin A by splitting the carotene molecule.3
Beta-carotene is a tetraterpene belonging to the isoprenoid series, characterized by a symmetrical structure. In the bodies of most animals, this molecule is cleaved at its point of symmetry, a process that yields two molecules of vitamin A.123
It is important to note that this biological capability is not universal across all species. For instance, cats and certain other carnivores lack this ability and must obtain preformed vitamin A by consuming the tissues of other animals.3