Enzyme Catalase What Factors Affect Enzyme Activity Michelina Bartolotto Lab Biology 111B February 2‚ 2014 /media/common.studymode/studymode-upload/stm/files/e1b9a3d6adf94ca848b12159c31f11b0.docx INTRODUCTION Enzymes are proteins that function as biological catalysts (Perry‚ Morton 2007). They maintain the body’s stable internal balance‚ and without them life would
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INVESTIGATION INTO THE EFFECT OF TEMPERATURE ON CATALASE ACTIVITY AIM The aim of this experiment is to find out the effect of temperature on catalase or hydrogen peroxide. This will enable us to tell at what temperature hydrogen peroxide is most efficient. This (degradation) reaction will help us determine some of the catalase’s different attributes. HYPOTHESIS In this experiment it would be safe to hypothesise that no activity would take place at 1 to 20 degrees. It would be probable that a
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food processing‚ clinical diagnoses‚ sewage treatment‚ and the textile industry. In this activity you will investigate how a particular factor influences the action of an enzyme. Conditions: Students are NOT required to design an experiment. Experimental design has been provided for you to use instead. You are however required to submit a Risk Assessment for the investigation. Students are to work independently. However‚ you will need to collect raw data from 4 other students to make the 6 trials
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they are cold blooded and the cold weather makes them slower. Being cold blooded‚ means that it adapts to the climate more as the temperature changes. Experimental Design The controlled group is the group where all the mealworms where at room temperature. The experimental variable was that we needed warm water and ice. The experimental set-up was that we made a hot and cold climate for the mealworms. For the hot climate the temperature kept rising and the cold climate went down
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plagiarism and will result in an unsatisfactory grade for the work submitted or for the entire course‚ and may result in academic dismissal. | | RSH9102E | Mentor: Ralph Lee | | | Research Design | Assignment: Paper 8 – Experimental vs. Quasi-experimental | | | <Add Learner comments here> ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Faculty Use Only -------------------------------------------------
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Experimental Errors and Uncertainty No physical quantity can be measured with perfect certainty; there are always errors in any measurement. This means that if we measure some quantity and‚ then‚ repeat the measurement‚ we will almost certainly measure a different value the second time. How‚ then‚ can we know the “true” value of a physical quantity? The short answer is that we can’t. However‚ as we take greater care in our measurements and apply ever more refined experimental methods‚ we can reduce
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from an irregular solid. We use the Water Displacement method to get the Volume of an irregular solid whereas in a regular solid‚ we only multiply the length‚ width‚ and thickness of the solid. Percentage Error is the absolute value of the difference of the Theoretical value and Experimental value all over the Theoretical Value multiplied to 100. It is used to compare the results obtained to the known or accepted value. METHODOLOGY I. Materials 50-mL graduated cylinder 125-mL flask Electronic
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graph shows that the highest rate of reaction is at pH 7. This therefore supports my theory that at pH 7 the rate of reaction will be highest. This relate to other resources‚ such as books and the internet‚ which show that the optimum pH value for catalase is pH7‚ therefore there is no difference between the optimum pH and the pH used in the experiment‚ hence the enzyme structure is not affected by the pH and is most active. However the graph inadequately supports the second part of the prediction
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Experiment # 4 Questions: 1. Give the procedure for reading the volume in relation to the formation of the meniscus. 2. Give the USP specification and tolerances regarding liquid and solid filling. 3. What are the factors that may affect a product’s fill volume? Experiment # 5 Sampling and Sampling Plan Obj: 1. To determine the numbers required in a sampling plan. 2. To demonstrate the square root sampling plan. Compute for the following problems using the two sampling plan
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ERRORS IN MEASUREMENT Errors in Measurement Structure 2.1 Introduction Objectives 2.2 Classification of Errors 2.2.1 Gross Errors 2.2.2 Systematic Errors 2.2.3 Random Errors 2.3 Accuracy and Precision 2.4 Calibration of the Instrument 2.5 Analysis of the Errors 2.5.1 Error Analysis on Common Sense Basis 2.5.2 Statistical Analysis of Experimental Data 2.6 Summary 2.7 Key Words 2.8 Answers to SAQs 2.1 INTRODUCTION The
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