http___livro-ensino-medio.f1cf.com.br_quimica_hr_chemistry-67.html_1.xml
1.1 2.1 3.1 4.1 5.1 7.1 8.1 10.1 11.1 12.1 13.1 14.1 15.1 16.1 17.1 18.1 19.1 20.1
Chemistry The amino acids are differentiated according to the substitution of the R group by other groups of atoms. The sequence of amino acids in a protein is responsible for the physical and chemical behavior of this chemical substance. The proteins are four types of structures which are formed because of the chemical bonds which occur between atoms and molecules. The covalent bond (peptide bond) between the carbon atom of the carbonyl group (-CO) an amino acid molecule with the nitrogen atom (N) group (-NH another molecule which has amino acid is the primary structure proteins, the amino acid sequence. The structures of secondary, tertiary and quaternary structures are maintained by ionic bonds (attraction between oppositely charged ions), hydrogen (H proton is shared with the oxygen atom of nitrogen or are close to) and the Van der Waals force (linking molecules shift from their electrons), which ensures that the protein performs its function effectively. Proteins are substances that play important roles in our body. Specific proteins such as hemoglobin, which pass through the lungs unites with the oxygen, has the function of transporting to other regions ions and molecules freeing them to participate in new metabolic processes. Enzymes are specialized proteins that act as catalysts in almost all chemical reactions in biological systems, increasing the speed of reactions. Many hormones are proteins that help regulate cellular activity or physiological. Insulin, for example is a protein that regulates the metabolism of sugars and growth hormone from the pituitary. Other proteins are responsible for the protection or resistance: biological structures, such as collagen present in the skin, the silk fibroin and found in the web spiders. Stay tuned. Know that the wire of your hair is mostly proteins containing amino acids long, parallel chains? Keratin is a tough protein found in hair, nails and feathers. Are the links between sulfur atoms (disulfide bonds) that usually determine if the wires of your hair will be straight or wavy.
1.1 2.1 3.1 4.1 5.1 7.1 8.1 10.1 11.1 12.1 13.1 14.1 15.1 16.1 17.1 18.1 19.1 20.1
Kemija Aminokiseline razlikuju se prema zamjenu R skupine drugih skupina atoma. Redoslijed aminokiselina u proteinima je odgovoran za fizičke i kemijske ponašanja ove kemijske tvari. Proteini su četiri vrste strukture koje su nastale zbog kemijskih veza koje se javljaju između atoma i molekula. Kovalentna veza (peptid veza) između ugljikov atom na karbonilnu skupinu (-CO) amino kiseline molekule na atom dušika (N) skupinu druge molekule koja ima amino kiselina je primarna struktura proteini, amino kiselinske sekvence. Strukture sekundarnih, tercijarnih i kvartarnih struktura se održava ionskih veza (privlačnost između suprotno nabijenih iona), vodik (H protonske dijeli s atomom kisika od dušika ili su blizu) i Van der Waalsovi snaga (povezivanje Molekule pomak od svojih elektrona), što osigurava da se proteini obavlja svoju funkciju učinkovito. Proteini su tvari koje igraju važnu ulogu u našem tijelu. Posebni proteina, kao što su hemoglobin, koji prolaze kroz pluća ujedinjuje s kisikom, ima funkciju transporta s drugim regijama iona i molekula ih oslobađajući za sudjelovanje u novim metaboličkim procesima. Enzimi su specijalizirane proteine koji djeluju kao katalizatori u gotovo svih kemijskih reakcija u biološkim sustavima, povećava brzinu reakcije. Mnogi hormoni su proteini koji pomažu u regulaciji stanične aktivnosti ili fiziološki. Inzulin, na primjer, je protein koji regulira metabolizam šećera i hormona rasta iz hipofize. Ostali proteini su odgovorni za zaštitu ili otpora: biološke strukture, kao što su kolagen prisutan u koži, svili i fibroin naći u web pauka. Stay tuned. Znaj da žice od vaše kose je uglavnom proteini koji sadrže amino kiselina duge, paralelne lance? Keratin je protein koji se nalazi u teška kose, noktiju i perja. Jesu li veza između atoma sumpora (disulfid obveznice) koji se obično bi se utvrdilo jesu li žice od vaše kose će biti ravna ili valovita.