Vitamins:

These are organic compounds that require very less in amount for biochemical processes. They act as biological catalysts in various chemical activities of the cell. It has basic nitrogen in it, thus named as vitamins ie. Vital amines or light amines. They are needed to be present in the diet and have no energy value. These are micronutrients that need not to digested. These are grouped into two categories. They are fat-soluble and water-soluble. The fat soluble vitamins can be dissolved in the fat while water soluble vitamins can be dissolved in water.