How is protein metabolism in the human body?

Protein is one of the most important places among all the 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. In the digestive tract, protein breaks down to amino acids. The latter penetrate into the blood and, passing through the cells and blood vessels of the liver, enter the tissues of the internal organs, where they are again synthesized into proteins specific to this organ.

Protein Exchange

The human body uses protein as a plastic material. Its need is determined by the minimum volume that balances protein loss. In the body of an adult healthy 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 inhibition of growth and weight loss. It should be noted that if at least one essential amino acid is missing , the body cannot live and function normally.

Stages of protein metabolism

Protein metabolism in the body occurs as a result of the intake 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 blood to the tissues. In this case, they are split into final products, as well as the synthesis of hormones, enzymes and components of the cytoplasm. When substances are broken down, energy is released that is necessary for the natural processes of synthesis and normalization of the work of the whole organism. The above stages of protein metabolism end with the removal of end products from cells, as well as their transport and excretion by the lungs, kidneys, intestines and sweat glands.

The 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. A special role is played by protein metabolism in the child's body. After all, he needs a large number of new cells for growth. With insufficient protein intake, the human body ceases to grow, and its cells renew much more slowly. Full-fledged include animal proteins. Of these, the proteins of fish, meat, milk, eggs and other similar foods are of particular value. The inferior ones are predominantly found in plants, so the diet should be designed in such a way as to satisfy all the needs of your body. With an excess of proteins, their excess breaks up. This allows the body to maintain the necessary chemical balance. Protein metabolism is very important for human life. With its violation, the body begins to expend protein of its own tissues, which leads to serious health problems. Therefore, you should take care of yourself and seriously approach the choice of food.