Britain) 17 RESEARCH COMMUNICATION The effect of low temperatures Nicole MORE‚ Roy M. DANIEL* and Helen H. PETACH on enzyme activity Thermophile Research Unit‚ University of Waikato‚ Private Bag 3105‚ Hamilton 2001‚ New Zealand The stability of two enzymes from extreme thermophiles (glutamate dehydrogenase from Thermococcales strain ANI and f‚- enzymes‚ glucosidase from Caldocellum saccharolyticum expressed in Escherichia coli) has been exploited to allow measurement of activity
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other mischievous names. Some of the earliest records of gangs date back to the fourteenth and fifteenth century in Europe. Some of the activities that these youths had been recorded as partaking in have been theft‚ robbery‚ extortion and rape. They do many types of vandalism to the city. Gangs are a violent reality that people have to deal with in today’s cities. They are a direct result of human being’s personal
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juices labeled A will have the most enzyme concentration because it looked thicker than the others. Therefore I thought it will need more Iodine whilst orange juice labeled B & C will need less Iodine because they looked lighter. Variables Independent: the amount of Iodine that was added to the the different types of orange juice Dependent: The color of the orange juice changed to dark purple depending on how much iodine that was put into orange juices. Controlled: the temperature of the orange juices
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structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction‚ called feedback inhibition. Enzymes are catalytic proteins;
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Experiment to investigate the effect of concentration of electrolyte on the current of voltaic cell Aim The aim is to identify the relationship between the concentration of H2SO4 solution and the current of Cu-Zn voltaic cell. Hypothesis My hypothesis is that the greater the concentration of sulfuric acid the bigger the current of the voltaic cell. In a voltaic cell‚ chemical energy is concerted to electrical though the oxidation and reduction happen on the electrodes. Current will not flow
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Enzymes play a vital role in helping our body function. They act as biological catalysts and help speed up reactions that would otherwise take long periods of time to naturally occur. Enzymes help lower the activation energy required for the reactants to reach the transitional state from which then they can form products. However‚ enzymes do not change the free energy of the reaction. Enzyme’s ability to catalyze reactions comes from the shape of the active site on the enzyme. Enzymes are hyper-specific
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for elimination during the process of circulation. As well as having very little nutritional value‚ fast foods‚ fried foods and processed foods have to be processed by the liver and this take its energy away from other detoxification work it has to do. 2. The lymph glands also play an important role in eliminating the toxins. A network of tubing brings out the excess waste of the cells from the body and to the final eliminating organs. The appendix‚ thymus‚ tonsil‚ and spleen are major lymphatic
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over the social‚ political‚ and future implications of immigration have plagued our society for decades. However numerous‚ among the most important are the economic effects that immigrants have on the United States of America. What positive effects do immigrants; both legal and illegal have on the economy of the United States of America? Immigrants help the United States economy
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Abstract This paper is about the Capitonyms and the affective of capitonyms on the learning and writing‚ it contains some sections. The first section is the introduction of the paper which contains the aims‚ problems‚ and the significant. The second section is the definitions of Capitonyms and showing the differences of capitonyms with homograph‚ capitalizing‚ and heteronym‚ and gives an explanation of using the capitonyms in writing. The third section is a list of some
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find how certain factors of a chemical reaction affect the rate of reaction. This experiment focused on how temperature affects the rate of reaction for the reaction of alka-seltzer and water. The rate of a reaction is a value calculated to figure out how fast a chemical reaction occurs. There are three factors that can be changed that will affect the rate of a chemical reaction: surface area‚ concentration‚ and temperature. Temperature specifically affects the rate of a chemical reaction‚ because
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