Printedin the Netherlands. Kinetics of growth and sugar consumption in yeasts J ohannes R van Dijken‚ Ruud A. Weusthuis & Jack T. Pronk D epartment of Microbiology and Enzymology‚ Kluyver Laboratory of Biotechnology‚ Julianalaan 67‚ 2628 BC Delft‚ The Netherlands K ey words: a lcoholic fermentation‚ chemostat culture‚ Crabtree effect‚ respiration‚ Saccharornyces cerevisiae‚ y easts A bstract A n overview is presented of the steady- and transient state kinetics of growth and formation of
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Enzyme Activity Lab Objective: To determine the effect of temperature‚ PH and enzyme concentration on catalase activity. Introduction: What is an enzyme and how the enzyme works. Any of a group of complex proteins or conjugated proteins thatare produced by living cells and act as catalysts in specific biochemical reactions. The system in which enzymes work is often referred to as the ’lock and key’ system it’s where the enzyme and the substrate lock together. The substrate then unlocks into
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MAJENGO SECONDARY SCHOOL CHEMISTRY TEST FORM VI JULY 2013 TIME: 2 HOURS SECTION A Answer all questions 1. a) A coordination compound has a formula Co Cl3. 4NH3. It does not liberate ammonia but precipitates one mole of chloride ions with Ag No3. i. Give IUPAC name of the complex ii. Write it’s structural formula a) Give chemical tests to distinguish [Co Br (NH3) 5] S04 and [Co (NH3)5 SO4] Br 2. Give IVPAC Names of the following i. K2 [ptF6] ii
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In this experiment the substrate is going to be hydrogen peroxide(H2O2) and the enzyme is going to be catalase. Hydrogen peroxide(H2O2) is a product of aerobic cellular respiration and is considered a free radical. This means that too much of hydrogen peroxide can affect the organelles. In order to stop damages caused by hydrogen peroxide‚ the enzyme catalase changes hydrogen peroxide(H2O2) to water(H2O) and oxygen gas(O2). Catalase is present most animal cells. The
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Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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alteration of a substance into one or more different substances with different properties (also called chemical reaction). The four different types of chemial reations are synthesis‚ decomposition‚ single displacement‚ and double displacement. Synthesis is when atoms and/or molecules combine to form larger molecules. Decomposition is when a large molecules are split into elements or smaller molecules. Single Displacement has an element and a compound as reactants and one element replaces another element
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MARKETING ASSIGNMENT HYDROGEN FUEL CELL CARS Submitted by: Group-8 Mithun mohan 141202005 Saniej Ak 141202008 Kavya Shetty
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When liver was added to hydrogen peroxide is caused and instantaneous reaction time. This is due to the enzyme catalase. If the enzyme catalase was not present in the human body‚ hydrogen peroxide‚ which is highly toxic to cells‚ would attack the unsaturated fatty acid compounds in the membrane of lipids.2 This would cause substantial damage to the membrane structure. Since catalase utilizes hydrogen peroxide as both an electron acceptor and donor it oxidizes hydrogen peroxide isolating oxygen while
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.Potential energy and kinetic is what makes the roller coaster ascends up the hill and it descends Roller coasters the change of ds down the hill. Potential and kinetic energy is what makes the roller coaster move. What some people may not realize is that the roller coaster has no engine. When you’re going down hill they use different types of wheels to keep the ride smooth. A roller coaster is not pulled by cable. The 3 types of wheels are running wheels which guides the roller coaster‚ Friction
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