The cell contains about 70 elements of the periodic system of D. I. Mendeleev. Of these, the main part (98%) is accounted for by macroelements – carbon, hydrogen, oxygen, nitrogen, which together with sulfur and phosphorus form a group of bioelements.
Elements such as sulfur, phosphorus, potassium, sodium, iron, calcium and magnesium account for only 1.8% of the substances that make up the cell.
In addition, the cell composition includes trace elements iodine (I), fluorine (F), zinc (Zn), copper (Cu), which make up 0.18% of the total mass, and micronutrients – gold (Au), silver (An), platinum (P) included in the cells in an amount up to 0.02%.
||Included in water and all biological compounds
||Included in all biological compounds
|Hydrogen and nitrogen
||Structural components of organic substances
||Included in DNA
||Serves as a catalyst for chemical reactions in the cell.
||Included in hemoglobin
||Structural cell element, responsible for the exchange of ave. In the cell
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