DATE: 11/10/12 COURSE CODE: BIOL 2365 Comparative Biochemistry TITLE: Proteins and Amino Acids RESULTS: Table 1: The results of experiment 1; the Lowry Test Volume of Standard Protein/ Unknown (mL) Absorbance at 750 nm 0 0.000 0.1 0.017 0.3 0.135 0.3 0.155 0.5 0.230 0.7 0.323 0.7 0.310 1.0 0.457 1.0 Unknown 1a 0.463 1.0 Unknown 1b 0.433 1.0 Unknown 2a 0.237 1.0 Unknown 2b 0.159 Table 2: The results of Experiment 2; Ninhydrin Test Amino acid Color X
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A college education has lost its value. When students attend college‚ they are left in severe debt after they graduate. This can sometimes be discouraging to students. This also makes you wonder‚ “What is the value of going to college or attending a postsecondary institution?” Has going to college become more expensive than what it’s worth? In my role as a financial aid counselor‚ I have gained much insight regarding tuition costs as well as financial aid amounts and options. In my years of being
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“Denaturation of Proteins” Denaturation is a process in which proteins or nucleic acids lose the tertiary structure and secondary structure which is present in their native state‚ by application of some external stress or compound such as a strong acid or base‚ a concentrated inorganic salt‚ an organic solvent (e.g.‚ alcohol or chloroform)‚ or heat. If proteins in a living cell are denatured‚ this results in disruption of cell activity and possibly cell death. Denatured proteins can exhibit
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Proteins are polymeric chains that are built from monomers called amino acids. All structural and functional properties of proteins derive from the chemical properties of the polypeptide chain. There are four levels of protein structural organization: primary‚ secondary‚ tertiary‚ and quaternary. Primary structure is defined as the linear sequence of amino acids in a polypeptide chain. The secondary structure refers to certain regular geometric figures of the chain. Tertiary structure results from
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4A.2 RRL 4A.2.1 Coagulation of Proteins Coagulation of protein refers to sticking together‚ like a blood clot‚ usually as a result of denaturation or coming out of solution due to abnormal ionic strength or a change of solvent. Definite characteristics of the proteins are changed when they are coagulated‚ among which is loss of solubility in water and dilute salt solutions. In some instances and under certain conditions the coagulation process may be reversible. (Campbell‚ et.al‚ 1979) 4A.2.2
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Identifying sites of protein synthesis in Chlamydomonas using erythromycin and cyclohexamide as protein synthesis inhibitors. October 16‚ 2009 Introduction: In living cells‚ prokaryotic or eukaryotic‚ the synthesis (construction) of proteins is accomplished by similar machinery. Amino acids‚ ribosomes‚ messenger RNA (mRNA)‚ and transfer RNA (tRNA)‚ are all necessary for the building of functional proteins in a cell. Ribosomes are the site of protein synthesis in a cell‚ and there are two
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TITLE: The Amount of Protein in Chicken Tissues over Cooked Various Periods of Time. ABSTRACT: In this lab‚ we are using a BioRad protein assay dye to determine the concentration of protein in our chicken. The dye binds to the amino acid residues‚ which allow us to find the concentration of protein (BioRad Protein Assay for Tissues). Our hypothesis was the longer chicken is cooked the less protein is available. To test our hypothesis‚ we made samples using our chicken and distilled water to determine
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accepted the origin of all life on Earth. In the article‚ “The Proof is in the Proteins: Tests Supports Universal Common Ancestor for All Life”‚ by Katherine Harmon‚ a scientist by the name of Douglas Theobold carried out statistical analysis on 23 preserved proteins that were preserved over three major domains of life. The result of these analyses supported Darwin’s evolutionary theory‚ by demonstrating that the protein sequences of life today came from a common universal ancestor rather than separate
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Protein shakes 1) Verifiable facts: the 3 common forms of protein shakes are whey‚ soy and casein protein. Protein shakes are useful when: - You’re growing - You’re starting a program - You’re amping up your workouts - You’re recovering from an injury Unverified statements or value claim: This whole part is unverified: So how can you tell if you’re already getting enough protein? Do the math. Recreational athletes need 0.5-0.75 grams of protein daily for every per pound of body weight Competitive
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DENATURATION OF PROTEINS Abstract The experiment aimed to use the concept of viscosity to study the effects of different denaturants on 1% albumin extract. An Ostwald viscometer was used to measure the flow time of 5 mL of the blank and native protein. These were then denatured by adding 1 mL of denaturant and had their flow time measured. The flow time from the blank to denatured protein is increasing. The specific viscosity and reduced viscosity
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