Lab 2 Report for MATSE 473 Determining Molecular Weight using Solution Viscosity Name: Mengfang Li Group D Lab Partners: Michael Lorenzo‚ Peter Mcclure 01/24/2012 Introduction: This lab was designed to demonstrate the method to measure the intrinsic viscosity of the prepared polystyrene. Intrinsic viscosity‚ which is measured from the flow time of a solution through a simple glass capillary‚ has considerable historical importance for establishing the very existence of polymer molecules
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Glucose Oxidase and Its Various Uses Aaron Truong Since glucose oxidase has an end product called hydrogen peroxide‚ which is a harmful substance to bacteria‚ it can be used to fight bacteria‚ or sterilize objects (can have various uses such as in hand sanitizers‚ toothpaste‚ soap‚ etc)‚ not just biosensors. Another key part in the reaction would be C6H12O6‚ or glucose. Glucose oxidase can be applied to diabetics as mentioned earlier‚ as biosensors work by "keeping track of the
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pathway for glucose oxidation. Similar to glycolysis‚ but instead of having pyruvate as the end product it is diverted to other pathways. Supplier of energy to the cell in the form of NADPH (a reducing power for biosynthesis). It is also referred to as hexose monophosphate shunt. *Fate of glucose 6-phosphate (G 6-P) IN THE PPP (S. 71) Taken out from glycolysis and converted into Ribulose 5-phosphate. With the conversion of ribulose 5-phosphate 2 moles of NADPH acquired protons from glucose 6-phosphate
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Glucose homeostasis The fed state Presentation copyright © 2007 David A Bender The central nervous system is very largely reliant on glucose as its metabolic fuel; it cannot oxidise fatty acids (but can metabolise ketone bodies in prolonged starvation) glycogen Red blood cells are absolutely reliant on glucose; they have no mitochondria and form ATP only by anaerobic glycolysis triacyglycerol protein glucose triacylglycerol in VLDL triacylglycerol in chylomicrons amino
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hydrogen fluoride molecules. KCl – potassium chloride is a metal halide salt. The bonding between potassium and chloride is an ionic bond. The potassium becomes a cation and the chloride an anion. The potassium end of the molecule becomes slightly positive and the other end slightly negative. Na – sodium contains metallic bonding. It has a high melting due to the bonding and has strong bonds. Each sodium atom is being touched by eight other sodium atoms and they all share electrons between the
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complex carbohydrates include vegetables‚ whole grains‚ peas‚ pasta‚ potatoes and beans. Carbohydrates are the main source of glucose‚ which is a major fuel for all of the body’s cells and the only source of energy for the brain and red cells. Except for fiber‚ which cannot be digested‚ both simple and complex carbohydrates are converted into glucose. The glucose is then either used directly to provide energy for the body‚ or stored in the liver for future use. When a person consumes more
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Molecular gastronomy Transglutaminase (TG) is a naturally occurring enzyme in plants‚ animals‚ and bacteria. Enzymes are proteins that act as catalysts in chemical reactions; they speed up reactions and make reactions occur that otherwise wouldn’t. Although TG is a newcomer to the kitchen‚ cooks have used enzymes for thousands of years. Enzymes in papaya‚ for instance‚ are traditionally used as meat tenderizers. The enzyme rennet is used to curdle milk when making cheese. Enzymes that break down
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There are many branches of food science‚ all of which study different aspects of food such as safety‚ microbiology‚ preservation‚ chemistry‚ engineering‚ physics and the like. Until the advent of molecular gastronomy‚ there was no formal scientific discipline dedicated to studying the processes in regular cooking as done in the home or in a restaurant. The aforementioned have mostly been concerned with industrial food production and while the disciplines may overlap with each other to varying degrees
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Purpose: The purpose of this experiment is to determine the number of moles of water molecules of crystallization of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis and to indirectly determine the percent composition of a hydrate by taking advantage of its chemical properties. Introduction: Gravimetric procedures are analytical methods in which the results are determined from the masses of starting materials and products. These methods
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Sodium is a mineral that is present only in small quantities in most natural foods‚ but salt is added‚ often in large amounts‚ in food processing and by cooks to enhance flavor. Sodium is the predominant ion in extra cellular fluid. Sodium (Na) is the predominant cation in extra cellular fluid and its concentration is under tight homeostatic control. Excess dietary sodium is excreted in the urine. The kidney very efficiently reabsorbs the mineral when intakes are low or losses are excessive. Sodium
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