Detection of biological molecules. Lab work.

very extensive lab... the results should be obtained by the reader who should get under ones skin the info. equitable style and observations. DETECTION OF BIOLOGICAL MOLECULES Introduction: Without carbon, nitrogen, hydrogen, sulfur, type O and phosphorus, life wouldnt exist. These ar the most broad elements in backing organisms. These elements are held to engenderher by covalent bonds, noodle bonds, hydrogen bonds, and disulfide bonds. covalent bonds are especially strong, thus, are rescue in monomers, the building 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 useable groups. For example, an amino group is present in amino acids, and a carboxyl group can always be implant in fat person acids. The groups can be separated into two more categories, the polar, hydrophilic, and the nonpolar, hydrophobic. A fatty acid is no npolar, consequently it doesnt mix with water. Molecules of a certain mob have akin chemic properties because they have the same functional groups. A chemical examen that is sensitive to these groups can be used to put molecules that are in that class. This lab is broken down into cardinal different sections, the Benedicts test for step-down sugars, the iodine test for the front 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 sum substance and by the four tests, determine what the sub stance is. BENEDICTS screen out ! Introduction: Monosaccharides and disaccharides can be detected because of their free aldehyde groups, thus, interrogatory positive for the Benedicts test. Such sugars act as a bring down agent, and is called a reducing sugar. By mixing the sugar ascendent with the Benedicts solution and adding heat, an oxidation-reduction reaction go forth 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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