Practical 3: Proteins Introduction: ‘Protein’ also an important food component‚ we commonly take in from our diet. In this experiment we have studied a certain property of protein‚ i.e.‚ protein can be denatured by various factors. A. Denaturation of egg white Results: Egg white sample in water baths | Test tube | temperature | Observations | 1 | 60°C | Took 7minutes and 15 seconds to turn white and form white participate. | 2 | 80°C | Took 2minutes and 20 seconds to turn white
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Protein Article Research SCI/241 August 1‚ 2013 Dr. Theodore Keneklis Protein Article Research Proteins are made up of amino acids‚ and in our bodies we have proteins that “are part of every cell‚ tissue‚ and organ in our bodies” (Centers for Disease Control and Prevention: Protein‚ http://www.cdc.gov/nutrition/everyone/basics/protein.html). There are complete proteins which are made up from animals. These kinds of proteins are found in meat‚ poultry‚ fish and even cheese. A complete
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[Name] [Teacher] [Course] [Date] Catalase Lab Report An enzyme is something that helps to speed up a chemical reaction. The enzyme changes from reaction to reaction‚ but it always has the same impact. However‚ certain variables may cause the enzyme to have a more or less significant impact on the speed of each reaction. One of these variables that changes the effectiveness of an enzyme is temperature. There is an optimal functioning temperature for each enzyme in each reaction‚ depending on
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Ashley Njeru Mrs. Booth Tuesday‚ March 19th 2013 SBI 4U INTRODUCTION: The cellular activity of all organisms is controlled through the use of enzymes. An enzyme is a special type of biological molecule‚ usually a protein‚ which speeds up a chemical reaction; most are soluble in water or a dilute salt solution. There are about 4000 different enzymes in a typical living cell. If even one of these enzymes is missing or defective‚ the results can disastrous. Enzymes
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Stoichiometry Lab Stoichiometry is the end result of adding up chemical elements that were involved in chemical reactions (http://dictionary.reference.com/browse/stoichiometry). The word stoichiometry was obtained from two greek words meaning element and measure. This explains the definition for the term. A chemist named Jeremias Benjamin Richter was the chemist responsible for first realizing what stoichiometry was (http://www.chemteam.info/Stoichiometry/What-is-Stoichiometry.html). In 1972
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Protein biosynthesis is the process by which biological cells generate new proteins; it is balanced by the loss of cellular proteins via degradation or export. Translation‚ the assembly of proteins by ribosomes‚ is an essential part of the biosynthetic pathway‚ along with generation of messenger RNA (mRNA)‚ aminoacylation of transfer RNA (tRNA)‚ co-translational transport‚ and post-translational modification. Protein biosynthesis is strictly regulated at multiple steps‚ and error-checking mechanisms
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In the digestive system‚ enzymes are produced to break down carbohydrates‚ proteins and fats into smaller soluble molecules from large food molecules. These spread through the tube of the small intestine and into the blood plasma
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Protein Misfolding Brittany Mascarenhas (ID: 20471654) Corey Nixon Biol 130 Tuesday October 23‚ 2012 In an organism‚ almost every dynamic function relies on proteins. A protein ’s function is a direct result of their intricate folding‚ the simplest level of which is the sequence of amino acids. (Fitzpatrick et al‚ 2011). Each amino acid has a unique characteristic because of the physical and chemical properties in their side chains‚ which affects the function of a protein
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Osmosis The purpose of this lab is to study how membranes of plant and animal cells react when exposed to different solutions. The first experiment involves purple onion skin and the second involves rat blood in various solutions. I needed to understand certain terms before preforming this lab to be able to efficiently explain what is happening to the cells. Diffusion is the tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area.
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and the quantification of albumin and casein were performed and analyzed after extraction of the said proteins from their respective sources. Isolation of proteins was initiated by the breakage of the cell wall / membranes in three different ways. Homogenization of invertase‚ albumin and casein were achieved via grinding process‚ addition of 1M acetic acid and acidification by 0.1M hydrochloric acid correspondingly. Extraction of invertase and casein involved precipitation through the utilization of
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