Detection of biological molecules. Lab work.

very extensive lab... the results should be obtained by the reader who should know the info. equitable style and observations. DETECTION OF BIOLOGICAL MOLECULES Introduction: Without carbon, nitrogen, hydrogen, sulfur, oxygen and phosphorus, life wouldnt exist. These ar the most broad elements in subsisting organisms. These elements are held to engenderher by covalent bonds, noodle bonds, hydrogen bonds, and disulfide bonds. covalent bonds are especially strong, thus, are enclose in monomers, the make blocks of life. These monomers combine to make polymers, which is a long orbit of monomers draw together. Biological molecules can be distinguished by their functional 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 illogical into two more categories, the polar, hydrophilic, and the nonpolar, hydrophobic. A fatty acid is nonpolar, then it doesnt mix with water. Molecules of a certain mob have identical chemical properties because they have the same functional groups. A chemical examen that is sensitive to these groups can be used to pick up molecules that are in that class. This lab is broken down into four-spot different sections, the Benedicts test for step-down sugars, the iodine test for the heading 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 total substance and by the four tests, determine what the substanc e is. BENEDICTS trial run Int! roduction: Monosaccharides and disaccharides can be detected because of their free aldehyde groups, thus, scrutiny positive for the Benedicts test. Such sugars act as a cut agent, and is called a reducing sugar. By mixing the sugar lineage with the Benedicts solution and adding heat, an oxidation-reduction reaction will occur. The sugar will oxidize, gaining... If you want to get a full essay, order it on our website: OrderCustomPaper.com

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