Year 11 IB Biology IA Report 2011 5/31/2011 Enzyme Activity Experiment Introduction 3 AIM 3 Materials 3 Method 4 Result 5 Table 1: 5 Table 2: 5 Graph 1 6 Discussion 6 Conclusion 8 Bibliography 9 Appendix 1 (Test tube 3- 45 degrees) 9 Appendix 2 (Test tube 1- 5 degrees) 9 Appendix 3 (Test tube 2- 20 degrees) 9 Introduction Phenolphthalein is an indicator that is pink in alkaline solutions of about pH10. When the pH drops below pH 8.3 phenolphthalein will
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A. 1What are the factors that affect the corn market (i.e. supply curve for corn production and demand curve for corn consumption) ? The corn market can be negatively affected because of the weather and climate have an impact on the supply of the corn. With a bad weather condition‚ like drought‚ the survivability of the corn decreases. The total corn produced the u.s. is facing a large deduce‚ most of the people will be affected. However the corn market can be positively affected. Firstly‚ if
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Investigating the effect of pH on the activity of the enzyme catalase. Introduction Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colourless in a dilute solution‚ slightly more viscous than water. It is a weak acid. It has strong oxidizing properties and is therefore a powerful bleaching agent that is mostly used for bleaching paper. Catalase is a common enzyme found in all living organisms. Its functions include the conversion of Hydrogen Peroxide‚ a powerful and potentially
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Factors Affecting Profitability: An Empirical Study on Ethiopian Banking Industry Amdemikael Abera A Thesis Submitted to The Department of Accounting and Finance Presented in Partial Fulfillment of the Requirements for the Degree of Master of Science (Accounting and Finance) Addis Ababa University Addis Ababa‚ Ethiopia June 2012 Addis Ababa University School of Graduate Studies This is to certify that the thesis prepared by Amdemikael Abera‚ entitled: Factors Affecting Profitability:
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Effect of Temperature ( C ͦ) on Enzyme Catalase Activity in potato Aim: To investigate the Effect of temperature (10‚ 37‚ 60) Celsius (C ͦ) on enzyme catalase activity in potato using 2% of hydrogen peroxide (H202) as the substrate measuring the height (cm) of oxygen gas (bubbles) and calculating the volume of oxygen bubbles produced (cm3) Introduction: Enzymes are biological catalysts that speed up metabolic reactions without being affected. They lower the activation energy needed to start
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Effect of Concentration‚ pH and Temperature on Enzyme Activity Biology For Majors October 4‚ 2012 Abstract We examined the reaction an enzyme has when its concentration‚ pH and temperature are altered. In order to do this‚ we added different levels of pH into different test tubes with the enzyme (sucrose)‚ and substrate (sucrose)‚ and we then inverted the tube. The higher pH produced more enzyme activity. Temperature effects enzyme activity by decreasing its stability when the temperature
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what junket contains and how it | | |works. | |Three |Question Two: Factors Tested | |Four |Experiment One: Control | |Five |Experiment
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Aim: To find the effect of 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
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Factors that affect climate Latitude: Ocean Currents: Wind and air masses: Elevation: Relief: Near water: Global Factors that Affect Climate As the suns UV rays hit the earth they hit is directly at the equator causing more heat. Because these rays are direct and they hit direct at one spot. For part a‚ the earth start to slope‚ in which the sun’s rays have to hit a larger areas‚ and have to travel further distances. As the latitude increases‚ the average annual temperatures decreases. In North
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Laboratory 2: Scientific Methodology & Enzyme Activity Objective: The purpose of this experiment was to simply measure oxygen production rates released from decomposed hydrogen peroxide under different conditions (concentration of enzymes‚ temperature‚ and PH level). Hypothesis: Part a: If different amounts of enzyme solution are added to the hydrogen peroxide‚ then the highest amount of enzymes will have the greatest reaction rate because enzymes catalyze reactions‚ meaning more oxygen
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