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School From the outside, are quite different with respect to skin color and hair, the physical structure height. Internally seem true twins. If you could embark on a micronave and enter the human body, such as the Travel Unusual movie, what would you see? Hundreds of bones, miles of veins and trillions of cells working together to put into operation this machine. The chemical composition of the human body is vital to its proper functioning. Many common substances we ingest as water, salt, and foods such as cooking oil have an essential role in the maintenance of our lives. Our body is made of matter, which is all that has mass (amount of matter that contains a substance). The material can exist as a solid, liquid or gas. All forms of matter are comprised of a limited number of basic units called chemical elements, which can not be broken down into simpler substances. For now, the IUPAC (International Union of Pure and Applied Chemistry) recognizes 109 different chemical elements. The chemical elements are designated by abbreviated letters called chemical symbols. Listen to Eduardo Galeano's poem in his book Words Walkers: "A Window on the Body The Church says: The body is a fault. Science says: The body is a machine. Advertising says: The body is a business. The body says: I am a party. What, then, is the human body? What are the ingredients that make up this body, which is defined so differently? Chemically speaking, this is the recipe of the human body: 26 selected chemical elements of the periodic table. Carry on portions of these 4 elements: oxygen, nitrogen, hydrogen and carbon and added a pinch of 22 chemical elements that are missing. So the human body is prepared, a combination made in metabolic measure. But beware: if anything is missing in this recipe, the mixture can go wrong. Returning to the observation of the figure of the couple on the previous page, we note that: 65% of our body is oxygen. If added carbon, hydrogen and nitrogen have 96% of the total weight of human being, which includes the 42 liters of water circulating in an adult organism. Are atoms of these four elements combine to form molecules of protein, fat and carbohydrate, the building blocks of all our tissues. Therefore, the four are called elements constitution. But it would be nothing but a big pile of Matter and Its Nature
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Škola Izvana su vrlo različiti s obzirom na boju kože i kose, visina fizičke strukture. Iznutra izgleda pravi blizanke. Ako ste mogli ukrcati na micronave i ući u ljudsko tijelo, kao što su Travel neobičan film, što bi vidjeli? Stotine kostiju, milja vene i bilijuna stanica rade zajedno staviti u pogon ovog stroja. Kemijski sastav ljudskog tijela je od vitalnog značaja za njegovo pravilno funkcioniranje. Mnoge uobičajene tvari smo ingest što je voda, sol, i namirnice poput ulja imaju bitnu ulogu u održavanju našeg života. Naše tijelo se sastoji od materije, što je sve što ima masu (količina tvari koja sadrži tvar). Materijal može postojati kao kruto, tekućine ili plina. Svi oblici materije se sastoji od ograničenog broja osnovnih jedinica zove kemijski elementi, koji se ne može rastaviti na jednostavnije tvari. Za sada, IUPAC (International Union of čistu i primijenjenu kemiju) priznaje 109 različitih kemijskih elemenata. Kemijski elementi označeni slovima skraćenog naziva Kemijski simboli. Poslušajte Eduardo Galeano pjesmi u svojoj knjizi Riječi šetači: "Prozor na tijelu Crkva kaže: tijelo je kriv. Znanost kaže: tijelo je stroj. Oglašavanje kaže: Tijelo je posao. Tijelo kaže: Ja sam stranka ". Što je, dakle, da je ljudsko tijelo? Koji su sastojci koji čine to tijelo, koje je definirano kako drugačije? Kemijski gledano, ovo je recept od ljudskog tijela: 26 odabranih kemijskih elemenata periodnog sustava elemenata. Nosi se na dijelove tih 4 elementa: kisika, dušika, vodika i ugljika i dodao prstohvat 22 kemijskih elemenata koji nedostaju. Dakle, ljudsko tijelo se priprema, kombinaciju napravio u metabolički mjere. Ali pazi: ako nešto nedostaje u ovom receptu, smjesu možete pogriješiti. Povrat na promatranju liku par na prethodnoj stranici, napominjemo da: 65% našeg tijela je kisik. Ako se doda ugljik, vodik i dušik imaju 96% od ukupne težine ljudskog bića, koji uključuje 42 litara vode kruži u odraslom organizmu. Jesu li atomi tih četiri elementa zajedno čine molekule proteina, masti i ugljikohidrata, izgrađeni od svih naših tkiva. Dakle, četiri su elementa zove Ustav. Ali, to bi bilo ništa, ali velika gomila materije i njezine prirode