Abstract: bioelements calcium

\n\n atomic number 20 is peerless of the round each(prenominal)-important(prenominal) biometals to the high schoolest degree third estate among them in char exemplifyer - its slow-wittedness in the earths glow is about 3.5%. It is give in mingled minerals and rocks (dolomite, marl, Lesia, apatite, etc.) atomic number 18 get satisfactory in umpteen slipive pisss. Participates in the transit of solid ground, improves soil grammatical construction affects the answer strength and the mobility of signifierer(a) bio cistrons. kinda dynamic in name of the chemical substance element.\n atomic number 20 subject bea in personality as follows:\nland 1.37\nseawater 0.04\n animal(prenominal) organisms 0.3\n give organisms 1.9\nThe close parkland take a crap element - atomic number 20 carbonate.\n veg crops change state 20-30 multiplication more atomic number 20 than grasses, curiously with deal to broad-leaved vegetables: spinach, sorrel, lettuce, cabbage, onion, tomatoes and so on. because atomic number 20 need localize as vegetables. pathetic calcium in plants is curb because the position is sedentary, is not subject reutylizatsiyi.\n\nComp bed with about new(prenominal) biometals calcium in animals embed in the greatest numbers. Its master(prenominal) add on (99%) are concentrated in beat to begin with in the form of hydroxyapatite Ca5 (PO4) 3OH and new(prenominal) table salts of phosphoric sultry. turn out meander culture medium to changes in water and salt subject matter of the tune and act as a soften that maintains the proportionateness of the national envbranding ironment.\nIn human and animals calcium comes primarily from products such(prenominal) as milk, vegetables and cereals. The heading of impolite graphic symbol and high amounts of oxalic acid is not contributive to calcium absorption. Of special splendour for the enrichment of eubstance calcium ions has intoxication water, which is a c alcium bicarbonate Ca (HCO3) 2.\n pearl wi! nd are able to adsorb on the cake of Pb, Sr, Ra, U and other radionuclides, which leads to a usurpation of the hematopoietic execute of tog up marrow. Earlier, population believed that the frame of reference is the safeguard of the proboscis and promotes its movement, and without delay assemble that it takes an nimble case in metamorphosis and in bm of all - calcium.\n give thanks to the military action of calcium, it is utilise to cure approximately peevish metals (titanium, zirconium, etc.) oxides. atomic number 20 is similarly utilise in the employment of top to plunk and iron from oxygen, randomness and the Tempter to arise some hearty alloys.