A provitamin is a substance that can be converted into a vitamin
Vitamin
A vitamin is an organic compound required as a nutrient in tiny amounts by an organism. A compound is called a vitamin when it cannot be biosynthesis in sufficient quantities by an organism, and must be obtained from the diet.... by animal tissues
Biological tissue
Tissue is a cellular organizational level intermediate between cells and a complete organism. Hence, a tissue is an ensemble of cells, not necessarily identical, but from the same origin, that together carry out a specific function.... .
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A provitamin is a substance that can be converted into a vitamin
Vitamin
A vitamin is an organic compound required as a nutrient in tiny amounts by an organism. A compound is called a vitamin when it cannot be biosynthesis in sufficient quantities by an organism, and must be obtained from the diet.... by animal tissues
Biological tissue
Tissue is a cellular organizational level intermediate between cells and a complete organism. Hence, a tissue is an ensemble of cells, not necessarily identical, but from the same origin, that together carry out a specific function.... .
Similar to a prodrug
Prodrug
A prodrug is a Pharmacology substance that is administered in an inactive form. Once administered, the prodrug is drug metabolism in vivo into an active metabolite.... that is metabolized into a drug.
Vitamin A, a bi-polar molecule formed with bi-polar covalent bonds between carbon and hydrogen, is linked to a family of similarly shaped molecules, the retinoids, which complete the remainder of the vitamin sequence....
The term carotene is used for several related substances having the formula C40Hx, which are synthesized by plants but cannot be made by animals.... , cryptoxanthin
Cryptoxanthin
Cryptoxanthin is a natural carotenoid pigment. It has been isolated from a variety of sources including the petals and flowers of plants in the genus Physalis, orange rind, papaya, egg yolk, butter, apples, and bovine blood serum....
Panthenol is the alcohol Analog of pantothenic acid , and is thus the provitamin of B5. In organisms it is quickly oxidized to pantothenate. Panthenol is a highly viscous transparent liquid at room temperature, but salts of pantothenic acid are powders ....
Ergosterol , a sterol, is a biological precursor to Vitamin D. It is turned into viosterol by ultraviolet light, and is then converted into ergocalciferol, which is a form of Vitamin D....
7-Dehydrocholesterol is a zoosterol that functions in the blood plasma as a cholesterol precursor, and is converted to Cholecalciferol in the skin, therefore functioning as previtamin-D3....
Vitamin E is the collective name for a set of 8 related a-, ?-, ?-, and d-tocopherols and the corresponding four tocotrienols, which are fat-soluble vitamins with antioxidant properties....
A prodrug is a Pharmacology substance that is administered in an inactive form. Once administered, the prodrug is drug metabolism in vivo into an active metabolite....
