Detection of biological molecules. Lab work.

very extensive lab... the results should be obtained by the reader who should wipe out the info. equitable style and observations. DETECTION OF BIOLOGICAL MOLECULES Introduction: Without carbon, nitrogen, hydrogen, sulfur, atomic number 8 and phosphorus, life wouldnt exist. These ar the most broad elements in supporting organisms. These elements are held to engenderher by covalent bonds, noodle bonds, hydrogen bonds, and disulfide bonds. covalent bonds are especially strong, thus, are premise in monomers, the construction blocks of life. These monomers combine to make polymers, which is a long orbit of monomers thread together. Biological molecules can be distinguished by their feasible groups. For example, an amino group is present in amino acids, and a carboxyl group can always be erect in fat person acids. The groups can be degage into two more categories, the polar, hydrophilic, and the nonpolar, hydrophobic. A fatty acid is nonpolar, wherefore it doesnt mix with water. Molecules of a certain mob have analogous chemical properties because they have the same functional groups. A chemical examen that is sensitive to these groups can be used to unwrap molecules that are in that class. This lab is broken down into four different sections, the Benedicts test for step-down sugars, the iodine test for the front man of starch, the Sudan III test for fatty acids, and the Biuret test for amino groups present in proteins.

The last part of this lab takes an unknown measurement substance and by the four tests, det ermine what the substance is. BENEDIC! TS strain Introduction: Monosaccharides and disaccharides can be detected because of their free aldehyde groups, thus, examen positive for the Benedicts test. Such sugars act as a minify agent, and is called a reducing sugar. By mixing the sugar rootage with the Benedicts solution and adding heat, an oxidation-reduction reaction allow occur. The sugar will oxidize, gaining... If you want to get a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper