What are proteins?

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Proteins

Protein is a complex organic compound with high molecular weight that is formed of amino acids linked by the peptide bond together. It is necessary in the synthesis and function of all living cells, including viruses.

The enzymes are formed from proteins and the latter also form the protein units involved in the synthesis of enzymes, and the protein has structural or mechanical roles; it forms the pillars and joints of the cellular structure, and it performs other vital tasks that are an important member in the immune response and in the transport and storage of bio-molecules, as the protein A source of amino acids for organisms that cannot produce these amino acids themselves.

Types and sources of protein

Protein sources

Meat protein: It provides the body with all types of amino acids, which are represented in meat, fish and poultry, as the large egg contains six grams of protein, 85 grams of beef contains 23 grams of protein, and 83 grams of skinless chicken breast contains 24 grams of protein, while salmon contains 83 grams of it, 23 grams of protein, and the same amount of tuna contains 22 grams of protein.

Vegetable proteins: They are less beneficial because each plant possesses special types of amino acids and not others, and it includes grains such as lentils, and nuts as well. 30 grams of peanut butter contains nine grams of protein, and 60 grams of different nuts contain six grams of it And pumpkin seeds are foods rich in iron, magnesium and zinc, along with protein, as 28 grams of them contain five grams of protein, as well as flax and chia seeds.

Protein types

- Simple proteins: They are hydrolyzed, and the amino acids have a good ratio, and are found in eggs and corn oil.

Complex proteins: are the union of a nutrient or an inorganic molecule with proteins.

- Derivative proteins: in which the protein, when exposed to heat, breaks down into derivatives, each of which contains molecules of amino acids.

The body's need of protein

The average person needs a gram of protein per kilogram of his body daily, while athletes need twice that amount; it is necessary to build and renew muscle cells.

Symptoms of a protein deficiency

In adults

- Rapid weight loss.

- Fatigue and tiredness.

- Having anxiety.

- Decreased body resistance to disease.

In children

- Slow sleep.

- Diarrhea.

- Liver injuries and neoplasms if this deficiency persists.

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