Proteins
Proteins, or proteins – complex, high molecular weight organic compounds consisting of the amino acids. They represent the main, most important of all cells and tissues of animals and plants, without which there can be carried out vital physiological processes. Proteins vary in composition and properties in a variety of animal and plant organisms in the different cells and tissues of the same organism. The proteins of different molecular composition different soluble in water and aqueous salt solutions in organic solvents, they do not dissolve. Due to the presence in the protein molecule of acidic and basic groups, it has a neutral reaction.
Proteins form numerous connections with any chemicals, which makes them particularly important in the chemical reactions occurring in the body and constitute the basis of all forms of life and protect it from harmful influences. Proteins are the basis of enzymes, antibodies, hemoglobin, myoglobin, many hormones form complexes with complex vitamins.
Coming in connection with fats and carbohydrates, proteins in the body can be converted when its cleavage in fats and carbohydrates. In the animal body, they are synthesized only from amino acids and their complexes – polypeptides and formed from inorganic compounds, fats and carbohydrates, they can not. Is synthesized by the organism, many low molecular weight biologically active proteins that are similar to those found in the body, such as certain hormones.
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