Effect of an Orange on Catalase Activity in Comparison with a Potato Introduction Catalysts are substances that increase chemical reactions while using less energy. They also remain unchanged after use‚ which enables it to be used repeatedly. Cells have special catalysts called enzymes‚ which are specialized proteins that help accelerate chemical cell reactions. (Evert‚ RF & Eichhorn‚ SE 2013). Enzymes also control plant metabolic processes such as respiration (Evert RF‚ Eichhorn SE & Perry JB
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Abstract In this laboratory exercise we studied enzyme catalase‚ which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme Concentration were the conditions tested in the experiment
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Sang Kim Enzyme Catalyst Purpose/Problem: There are four parts to the Enzyme Catalyst lab - Activity A‚ B‚ C‚ and D. In activity A‚ the characteristics of enzyme actions will be observed. The main purposes are to determine the rate of an enzyme catalyzed reaction‚ to study the characteristics of an enzyme mediated reaction‚ and to observe the effect of heat on enzyme activity. The purpose of activity B is to use the Titration Protocol to determine the initial amount of H 2O2 present
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Understanding how catalase activity is affected by pH is the purpose of this experiment. Introduction Enzymes play an important role in daily life because of the chemical reactions. Almost chemical reactions require the presence of enzymes to promote the metabolic process. They are known as the incredibly efficient and highly specific biological catalysts. Most enzymes are protein with the ability to enhance the rate of reaction between molecules. To catalyze a reaction‚ the enzymes have to create
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Abstract The purpose of this lab was to test if ethanol affects the reaction involving hydrogen peroxide and catalase. Tests were performed by putting chicken liver‚ ethanol solution (diluted ethanol solution for other trials) and hydrogen peroxide in a test tube with a side arm‚ and having a rubber tube lead the oxygen gas into a gas collection tube. Results from the tests showed a negative correlation‚ this means that the more diluted the solution of 95% ethanol was‚ the less oxygen gas collected
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Environmental Biology Field trip at three different places all around Manila‚ We visited The Avilon Zoo‚ The La Mesa Eco Park and The Myth of the Human body. We are scheduled to depart at around 6:00 in the morning because that is what’s written in our itinerary‚ but just like what we all expected‚ the bus started the engine at around 7:30 in the morning already‚ we were kind of left behind with our scheduled trip and we’re a little bit upset about it because we all hurriedly woke up earlier than
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Assessment of Catalase Function Lab Introduction The purpose of this lab report was to test and measure the rate of substrate destruction by an enzyme‚ we tested the destruction of hydrogen peroxide by the enzyme catalase. Hydrogen peroxide is a poisonous by product of metabolism that can damage cells if it is not removed. Catalase is an enzyme that speeds up the breakdown of hydrogen peroxide into water and oxygen gas. H2O2 + catalase → H2O + O2 A catalyst is a substance that lowers the
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Chemistry Lab Write-Up Title: Paper Chromatography of Powdered Beverage Mix Purpose/Objective: The purpose is to be able to use liquid chromatography to separate dyes in a powdered beverage mix‚ calculate the Rf values for each dye‚ and rank the polarity of each dye present. Hypothesis: If we are to use the liquid chromatography to investigate the different dyes‚ then I think the different dyes will come up having different polarities and Rf values. Procedure/Method: Draw a line across
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26/05/2014 Biology “Enzyme Activities” Introduction: Enzymes have extremely interesting properties that make them little chemical-reaction machines. The purpose of an enzyme in a cell is to allow the cell to carry out chemical reactions very quickly. These reactions allow the cell to build things or take things apart as needed. This is how a cell grows and reproduces. At the most basic level‚ a cell is really a little bag full of chemical reactions that are made possible by enzymes (Brain)
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temperature on enzymes‚ using a potato as a catalyst. The source of catalase is in the potato cells. 2H2O2 → O2 + H2O Planning: Introduction: An Enzyme is any one of many specialised organic substances‚ composed of polymers of amino acids‚ that act as catalysts to regulate the speed of the many chemical reactions involved in the metabolism of living organisms Enzymes are classified into several broad categories‚ such as hydrolytic‚ oxidising‚ and reducing‚ depending on the type of reaction they control
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