Running head: LAB 5: INVESTIGATING AN ENZYME-CATALYZED REACTION Lab 5: Investigating an Enzyme-Catalyzed Reaction September 24, 2014 Principles of Biology 120.601 Mrs. Annemarie Duncan Abstract: (Burmania) This experiment was performed in order to examine ways in which a potato catalase enzyme reacts to various assays with differing variables. To do so a baseline assay (undiluted extract and room temperature H2O2) was used within the experiment with only one other variable changed in
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Version 1.0: 1006 abc General Certificate of Education Chemistry 5421 CHM2 Foundation Physical and Inorganic Chemistry Mark Scheme 2006 examination - June series Mark schemes are prepared by the Principal Examiner and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation meeting attended by all examiners and is the scheme which was used by them in this examination. The standardisation meeting
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The costs of silicon will vary depending on the purity of the silicon. For 100g of 99% pure silicon you would pay about $36. For the same amount at 99.9999% purity you would pay about $273. The value of aluminum scrap metal varies with the stock market. At some point it may be worth 50 cents while at other times it may be closer to a dollar. The valued rate of aluminum scrap on December 12, 2011 was .9369 or approximately 94 cents per pound. Right now copper is worth $3.3375-$3.3511 per pound.
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David O. Johnston David Lipscomb College I II The Methclnolysir of Acetal A chemical kinetics a n d g a r chromatography experiment Nashville, Tennessee The methanolysis of acetal and gas chromatography complement perfectly to provide a rare and interesting experiment for the physical chemistry student. The reaction of acetal with methanol is a consecutive reaction in which diethyl acetal (aretal) replaces its two ethoxy groups with methoxy groups forming methy1et)hylacetal first
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“Kent chemical: Organizing for Internal Growth” The case “Kent chemical: Organizing for Internal Growth” by Barlett and Wining shows the development of Kent Chemical, a US-based company, from a local rubber producer into a multinational chemical firm which main product divisions are plastic additives, fire protection products and medical plastics. In order to become one of the leading chemical companies in the world, Luis Morales, the president of Kent Chemical, is struggling, after two unsuccessful
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4/15/2015 BIO156 Lab 2 Print Lab 2 Biological Molecules and pH Introduction: Connecting Your Learning Biological organisms, like all things, are made up of elements. These elements combine to form organic molecules that create the basis for life. The main elements found in biological organisms include carbon (C), hydrogen (H), phosphorus (P), nitrogen (N), and oxygen (O). This lab describes how these elements form some of the most important molecules in life: carbohydrates, proteins
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Why are we concerned about whether atoms are reactive or not? 5. What determines whether a particular element (type of atom) is reactive? 6. Understand the difference between inert elements and those that are reactive and capable of forming chemical bonds. What is the significance of the valance shell of electrons? 7. Why do atoms seek to form bonds with other atoms? How does this correlate with their stability? 8. Understand the nature of ions and ionic bonds. Why is sodium able to
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Pure chemical substances are classified as ionic, metallic, covalent molecular and covalent network. In this essay I will describe the nature of each bonding present in these different types of substances and use this to explain the physical properties they exhibit and their structures. Ionic compounds are compounds that are composed of positive and negative ions. An ionic compound is a chemical compound in which ions are held together in a lattice structure by ionic bonds. Usually, the positively
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Abstract: Introduction: Materials: 12 x 5 cm3 plastic tubes 2 x 5 cm3 graduated pipette 1 x 20 cm3 of stock NADH (80 g cm-3) 1 x 20 cm3 of 50 mM phosphate buffer pH 7.2 2 x semi micro cuvettes Distilled water wash bottle Access to a Whirly mixer Access to Novaspec digital spectrophotometer 1 x 5 cm3 of a solution of NADH of unknown concentration. Method: 1. Using the protocol depicted in Table 1 set up 6 standard concentrations of NADH in buffer ranging from 0 to 80
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