AMAZING AMINO ACIDS
In 1838, a Dutch chemist, G.J. Mulder, described a certain organic material as "unquestionably the most important of all known substances in the organic kingdom. Without it, no life appears possible on our planet. Through its means the chief phenomena of life are produced. " This complex nitrogen-bearing substance was called protein from the Greek word meaning " take the first place." The presence of nitrogen distinguishes proteins from carbohydrates and fats. Proteins are thus vital substances, which form important constituent of muscles, tissues, and the blood. Proteins supply the building material for the body and make good the wear and tear of tissues. Several substances concerned with vital life processes such as enzymes, which help in digestion of food, are chiefly protein in nature. There are several varieties of protein. Each type contains a specific number of "building blocks " known as AMINO-ACIDS ....