True/False Questions Phosphoglycerates are complex lipids and are made up of glycerol, two fatty acids, phosphoric acids and amino alcohols Lecithin is an example of phosphoglycerate and it is called phosphatidyl choline Cephalins are phosphoglycerides found in blood platelets. They are made up of glycerol, fatty acids, phosphoric acid and serine, an alcohol containing amino acid. In sphingosine, one of the hydroxyl group of glycerol is replaced by an amino group and a hydrogen atom of CH2 group of glycerol is replaced by a C-15 Carbon chain containing an alkene group. Lecithin’s are components of cell membranes and function as emulsifying and micelle forming agents and thus play an important role in transport of lipids in blood.

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Essential nutrients

These are the organic compounds present in the food that provide nourishment essential for the development and growth of our body. Nutrients not only provide us with the required energy to carry out various biological processes but are also the building blocks for repair and growth in our bodies.

Vitamins

The vitamins are organic molecules required in low concentration for the proper functioning of the body. They cannot be generated in the organism and are taken into the body through the diet. The lack of proper vitamins results in diverse deficiency disorders. They are thus called essential nutrients. The important vitamins are vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, and vitamin E.