How does the temperature of 75mls of water affect how quickly one teaspoon of sugar dissolves? Aims and Objectives The aim of this scientific enquiry is to determine if and how the temperature of 75mls of water affects the speed in which sugar can dissolve in. The objective is to use three different independent variable temperatures of water. Then record three dependent variables of time in which the sugar dissolves in the different temperatures of water being used. One being cold‚ which in this
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Enzymes are biological catalysts that operate at the temperatures‚ pressures‚ and moderate pH values found in living organisms. They help in a faster chemical reaction in our human body. Besides this‚ enzymes also play a huge role in various industries. The following paragraphs will talk about how various enzymes are used in various industries : The Dairy Industry and Medical Industry. In the dairy industry‚ the enzyme Protease is used widely. While making cheese‚ protease helps coagulate milk
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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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that less required energy leads to faster rate of reaction. The rate of catalytic reactions is affected by the changes in temperature‚ pH‚ enzyme concentration‚ and substrate concentration. Each enzyme has an optimal temperature at which it is most active; the rate of reaction increases with increasing temperature up to the optimal level‚ but drops sharply above that temperature. Most enzymes have their optimal pH value that range from 6 to 8 with exceptions‚ and they may denature in unfavorable pH
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Practical: The Effect of the Enzyme Catalase from Chicken Livers on Hydrogen Peroxide [pic] Strand1: SA1‚ SA2‚ SA3 Date: Group Members: Marks: /12 (Part A) + /18 (Part B) = /30 INTRODUCTION: |There are many different reactions that are happening in our bodies all the time. There are reactions that build up molecules‚ | |synthesis/anabolic reactions‚ as well as reactions that break down molecules‚ catabolic reactions. Together
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with hydrogen peroxide and potatoes (enzymes)? Introduction The enzyme used for this experiment is Catalase. Catalase is inside mostly any living organism which uses oxygen. Its job is to break down hydrogen peroxide‚ into oxygen and water. (Formula) 2H2O2 ---> 2H2O + O2 (lab manual). There are limiting factors which if altered‚ can alter the procedure of the reaction‚ such as temperature‚ pH‚ and the concentration of either the enzyme or the substrates. Enzymes are specialized class of protein
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the enzyme activity that is temperature‚ pH‚ substrate concentration and enzyme concentration. As for temperature‚ it will affect the enzyme activity when there is a rise in temperature. When temperature increases‚ this will automatically increase the kinetic energy. This will then results in the increase of the rate of collision between the enzyme and substrate‚ but this effect is limited. The rate of reaction will increase up to a certain temperature. At this temperature‚ the enzyme activity is the
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4.3 (b) To investigate the effect of pH on the rate of catalase activity Teacher Notes Apparatus required per class group of 24 students Chopping board 12 Knife 12 Weigh boats 12 100 ml Graduated cylinders 36 Boiling tube 36 Syringe 12 Electronic balance 3 Dropper 12 Timer 12 Labels 36 Thermometer 12 Water bath 3 Enzyme source eg. Radishes/celery Hydrogen peroxide Range of buffer solutions pH paper Washing up liquid Disposable gloves The apparatus
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accelerate/cause reactions In this lab students measured the height of the foam after catalysis between catalase (enzyme) and 7 other (solutions) to determine which solution had the fastest reaction rate.. The control variable of the experiment would be the solution of only hydrogen peroxide‚ water‚ and catalase. The independent variables of the experiment were the abiotic factors such as PH level‚ temperature‚ and the amount of salt within the environment. The dependent variable of the experiment would
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their behaviour analysed with respect to temperature change. As proof of a specific state i.e. solid‚ the Mean squared displacement was calculated and illustrated with respect to time. This occurred for varying temperatures. From the internal energy of the system per time step‚ the heat capacity was determined. Heat capacity was then plotted against temperature in order to view phase transitions. The results show almost independence of heat capacity-temperature curves with respect to the number of particles
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