Termez state university “Interfaculties English chair”

3. Make up a story on the theme: “My day off”.


Key words: Sunday, hurry, anywhere, stretch, watching cartoons, shower, breakfast, sweep, as a rule, market, draughts, video, piano, the guitar, skating, skiing, forest, forest, outdoor, parents, clear, wash basins, bathtubs, to sleep. (30 b)
Head of the chair: Kudratov G.S

TERMEZ STATE UNIVЕRSITY

«INTERFACULTIES CHAIR OF THE FOREIGN LANGUAGES»
THE FINAL STATE ATTESTATION VARIANT
FOR THE DEPARTMENT OF CHEMISTRY


VARIANT № 7


1. Read and translate the text on specialty in written form:


CHEMICAL ELEMENTS OF LIVING MATTER (Part II).
There are important inorganic constituents of the body, in addition to water. Sodium, potassium, chlorine are present as the ions, and so is part of the calcium, magnesium, iodine and bromine. The total body sodium in young adult is about 58 mmol/kg (1'3 g/kg). The normal recommended intake of NaCl is 1 g per kg of water. Most western European and American diets contain 6-8 g of NaCl per day, which, in a temperate climate, is greatly in excess of requirements. The total body potassium in young adult man is about 50 mmol/kg (1,9 g/kg). It is somewhat less in women and declines slightly with advanced age. An adult man has about 16,7 mmol/kg (400 mg/kg) of magnesium in his body, about half of which is present in bones. The concentration of magnesium in cells is about 7.5 mmol/l; about 1/3 of this is protein-bound.
Other important ions occurring in living matter, apart from those formed from organic acids and bases, are bicarbonate, ammonium, phosphate and sulphate. The long skeleton and the teeth contain lithium fluoride as well. Additional important inorganic compounds include carbon dioxide and oxygen. Most of nitrogen, sulphur and iodine and the heavy metals are incorporated into or linked to organic molecules. About one-tenth of the phosphorus is combined with organic compounds.