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Vitamins, Structure and Function of

Biochemistry

  1. Donald B. McCormick

Published Online: 15 SEP 2006

DOI: 10.1002/3527600906.mcb.200400014

Reviews in Cell Biology and Molecular Medicine

Reviews in Cell Biology and Molecular Medicine

How to Cite

McCormick, D. B. 2006. Vitamins, Structure and Function of. Reviews in Cell Biology and Molecular Medicine. .

Author Information

  1. Department of Biochemistry, Emory University, Atlanta, GA, USA

Publication History

  1. Published Online: 15 SEP 2006

Abstract

A vitamin is an organic compound that occurs as a natural component of foods and must be supplied exogenously in small amounts to maintain growth, health, and reproduction of an organism. Hence, a vitamin is essential because it cannot be made in the organism that requires it; yet it functions, usually after metabolic alteration, in indispensable ways. Since only small quantities, usually microgram to milligram amounts per human adult per day, are required to avoid a deficiency disease, vitamins are classified as micronutrients along with the trace elements.

Keywords:

  • Apoenzyme;
  • Avitaminosis;
  • Coenzyme;
  • Cofactor;
  • Holoenzyme;
  • Hypervitaminosis;
  • Hypovitaminosis