Abstract:
Vitamins are naturally occurring organic substances in yeast, liver, meat, fish, dairy products and fruits, required in very small amounts for the normal functioning of living cells. In case of Vit. A, aldehyde is combined with protein to form the visual purple, needed for vision in dim light. Deficiency of this vit. leads to night blindness and stunting of growth. Vitamins which are concerned with energy production are Vit. Bl, B2, B6, Niacin, biotin and pantothenic acid and those which take part in the formation of blood are Vit B12, folic acid and choline. Vit.B1 is needed in oxidative decarboxylation. Its deficiency leads to a disease called bent beri. Vit. B2 is for oxidation. Nicotinic acid is involved in oxidation of carbohydrates, its deficiency leads to pellagra and intestinal disorder. Vit B6 is concerned with, metabolism of amino acids. Pantothenic acid is for the metabolism of fats and carbohydrates. Folic acid is used for the synthesis of purines and pyrimidines. Choline is for the fat transport. Its deficiency causes fatty degeneration of the liver. Vit B12 is essential for red blood cells. It functions as a part of the mechanism in the synthesis of the nuoleo proteins. Vit. C maintains the proper functioning of the cementing substance between the cells of the tissues. Lack of the Vit. C breaks the substance and blood seeps from the blood capillaries under the skin and into the Joints. It also causes the disease, scurvey. Vit. D aids in absorption of calcium from the intestine and its deposition to form the bone. Vit. K is for the production of prothrombin in the liver.
Page(s):
13-19
DOI:
DOI not available
Published:
Journal: Science chronicle, Volume: 13, Issue: 1, Year: 1975