For this lab it was necessary to bring a watch with a second hand‚ as well as personal protective gear: lab coat‚ safety goggles‚ and safety gloves. It was best to work in pairs and one partner needed to be a timekeeper while the other one would record the data. The timekeeper then would announce every 5 second interval‚ beginning from when the enzyme was added to the tube. On the other hand‚ the recorder would read and record the absorbance from the spectrometer at the 5 second intervals. This was
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To investigate the effect of temperature on an enzyme controlled reaction Introduction and planning For the investigation of enzymes‚ I am going to conduct an experiment to see how temperature can affect the rate of reaction of enzymes by testing it with starch. The enzyme that we are going to use is called amylase. We are going to test this enzyme with starch. By mixing amylase and starch solutions together under different temperature conditions‚ we can record the rate of reaction by taking a
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All living organism depend on catalytic proteins called enzymes‚ these compound are responsible for metabolism and biochemical regulation of energy‚ there are millions of enzymes and hundreds of enzymes have been identified in the human body as well. All living system possess enzymes as vital components of the body‚ enzymes are found in all organisms. Everyone has a natural pH balance in the body. Enzymes are complex proteins which speed up chemical reactions if this did not happen it would occur
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Abstract The enzyme peroxidase has been shown to break down H2O2. Enzymes are known to increase the rate at which a chemical reaction occurs. We looked at factors that affected the breakdown of hydrogen peroxide. These effects are the different temperatures and pH levels the enzymes were placed in. We found that the optimum‚ or best condition‚ temperature for the enzymes tested was about 22 degrees Celsius. The optimum pH level for the enzyme was 7. Introduction Enzymes are biochemical that catalyze
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container thus showing the extent of the reaction and this will show the rate in which oxygen is created and how the rate will change when we use different initial concentrations. We do use a catalyst in this reaction to speed up the process and lower the activation energy needed to run the reaction. The catalyst is the Iodide ion that will be used in the form of potassium iodide (KI). Results at the end of the trails will be used to compose a rate of law for the reactions. This law will show the “dependence
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Three Main Catalysts that Brought the U.S. Into World War II Throughout time scholars have examined human history and many events come to mind. While many of these events have good explanations or just reasons why they occurred‚ there are a handful of events that had no rhyme or reason‚ and these events will continue to baffle scholars for centuries to come. There is one event that continues to stand out when considering the events of the 1900’s. The events of World War II are extremely broad and
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Enzyme Activity How does temperature affect enzyme activity? In this practical investigation‚ my aim is to discover how temperature will affect enzyme activity‚ by looking at the rate of reaction. I predict that the higher the temperature will be‚ the faster the reactions take place. However‚ I also think that there will be an optimum temperature‚ at which the reaction will work at its fastest; if the temperature goes beyond that‚ the reactions will stop altogether as the enzymes would have
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amylase lab‚ it was being tested if amylase‚ an enzyme found in saliva‚ would be denatured by being put in an acid or high temperatures. This lab is about denaturing amylase. It is tested by exposing it to pH and temperature changes. It is then mixed with Benedict’s solution‚ is a solution that changes color from blue to reddish brown when maltose is present. Amylase breaks starch into maltose‚ so is the amylase isn’t denatured‚ it should change colors. Amylase is an enzyme. Enzymes are a type
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DESIGN - BIOLOGY Bromelain Name: Jaroslava Baranová Candidate number: 000771- Examination session: May 2012 Date of elaboration: 2.2.2011 Research question: What is the effect of enzyme bromelain contained in pineapple on the process of gelatinization of gelatine? Hypothesis: Enzymes are proteins that speed up or catalyze chemical reactions. Gelatine consists of gelatin(84-90%)‚mineral salts(1-2%) and water‚ and is free of fat cholesterol. Gelatin is a protein produced by partial
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Effects of Changes in Physical Properties on Enzyme Activity By Alex Hoffmann First Individual Lab Report Wednesday 7:30-10:15pm 10/24/12 Meghan Duell Abstract The goal of this lab was to determine the effects of certain physical properties on enzyme activity. Enzyme activity was measured by the height of the bubbles that appeared after the enzyme was added which are proportional to the rate of the reaction when time is constant. The fact that enzyme activity is affected by physical properties
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