Protein occupies one of the most important places among all organic elements of a living cell. It makes up almost half of the cell mass. In the human body, there is a constant exchange of proteins that come with food. Proteins are broken down into amino acids in the digestive tract. The latter penetrate into the blood and, having passed through the cells and vessels of the liver, enter the tissues of the internal organs, where they are again synthesized into proteins specific to this organ.
Protein metabolism
The human body uses protein as a plastic material. Its need is determined by the minimum volume that balances protein losses. In the body of an adult he althy person, protein metabolism occurs continuously. In case of insufficient intake of these substances with food, ten of the twenty amino acids can be synthesized by the body, while the other ten remain indispensable and must be replenished. Otherwise, there is a violation of protein synthesis, which leads to growth inhibition and weight loss. Shouldnote that if at least one essential amino acid is missing, the body cannot live and function normally.
Stages of protein metabolism
The exchange of proteins in the body occurs as a result of the supply of nutrients and oxygen. There are certain stages of metabolism, the first of which is characterized by the enzymatic breakdown of proteins, carbohydrates and fats to soluble amino acids, monosaccharides, disaccharides, fatty acids, glycerol and other compounds, after which they are absorbed into the lymph and blood. In the second stage, nutrients and oxygen are transported by the blood to the tissues. In this case, they are split to final products, as well as the synthesis of hormones, enzymes and constituent components of the cytoplasm. During the breakdown of substances, energy is released, which is necessary for the natural processes of synthesis and the normalization of the work of the whole organism. The above stages of protein metabolism end with the removal of end products from the cells, as well as their transport and excretion by the lungs, kidneys, intestines and sweat glands.
Benefits of proteins for humans
For the human body, the intake of complete proteins is very important, because only specific substances can be synthesized from them. Protein metabolism plays a special role in the child's body. After all, he needs a large number of new cells for growth. With insufficient intake of proteins, the human body stops growing, and its cells renew much more slowly. Toanimal proteins are complete. Of these, the proteins of fish, meat, milk, eggs and other similar food products are of particular value. Inferior ones are mainly found in plants, so the diet must be designed in such a way as to satisfy all the needs of your body. With an excess of proteins, their excess breaks down. This allows the body to maintain the necessary chemical balance. Protein metabolism is very important for human life. When it is violated, the body begins to consume the protein of its own tissues, which leads to serious he alth problems. Therefore, you should take care of yourself and take your food choices seriously.
