How is pH affecting catalase activity? Hypothesis The catalase activity is assumed to be the most active in pH7. The higher or lower concentration away from the optimum pH of catalase‚ the slower the rate of activity is. Data Collection & Processing I collected the results of pH4‚ pH7‚ pH10 and pH13 after 2 minutes‚ and I repeated the experiment 3 times. Below is a table to show the results‚ their averages and standard deviations: | 1st time (sec) | 2nd time (sec) | 3rd time (sec)
Free PH Buffer solution Standard deviation
The Effects of Various Environmental Conditions on the Rate of an Enzyme Catalyzed Reaction Olivia Payne Mr. Kuninsky 10/10/14 Variables: 1. Substrate Concentration 2. Substrate volume 3. Temperature 4. Enzyme Volume 5. Enzyme Concentration 6. pH The independent variable my group addressed was temperature The conditions for temperature were 5°C‚ 24°C‚ 35°C‚ and 45°C We measured the independent variable using thermometers The dependent variable was the rate of an enzyme catalyzed reaction The
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in regularity and severity of acid rain events‚ can be directly linked to large quantities of nitrogen oxides : · Formation of precipitation such as fog and snow‚ with a pH of below 5.6. · Effect on vegetation‚ in acid rain effected regions (see acid rain) · Effect on the low buffering fresh water waterways. · Acidic pH levels in soil. ·
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Transferred 5 drops from one of the 3 antacids and dropped them in the beaker with an eye dropper. • 2. Before mixing‚ used universal pH paper to test initial pH value of the antacid and recorded results. • 3. Dropped a single drop of phenolphthalein in beaker and mixed with stirring rod. • 4. Started adding HCL acid to mixture‚ mixing with stirring rod every 5 drops. • 5. Stopped when the mixture
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freezing the sample of hemolymph and the time that it takes to defrost depicts the amount of osmoles. Water analyses for the three tanks determined the temperature ºC‚ pH‚ salinity (ppt)‚ oxygen levels and the ammonia content. The temperatures of all three tanks were taken by a digital thermometer and the pH of the water was taken by a pH
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the subunit. ( Ahern & Rajagopal‚ 2013) Bohr Effect Hemoglobin has a high affinity for 02 at a high PH‚ low Co2. Hemoglobin has a lower affinity at a low PH‚ high Co2. At a high Co2‚ low PH hemoglobin is more stable in the T state which decreases its affinity for 02. Oxygen needs to be delivered to the tissues. Tissues have a low PH. Hemoglobin needs to release 02 at low PH. Low PH=low 02 saturation. ( Wolfe‚2000 ) Myoglobin: wants to store 02 for when tissues need it. Has a higher
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1. DescribethenormalrangesforpHandcarbondioxideintheblood. The normal pressure range for carbon dioxide in the blood is 35-45mmHg. The normal ph range for blood are between 7.35 and 7.45 2. Describe what happened to the pH and the carbon dioxide levels with hyperventilation. How well did the results compare with your prediction? The Ph increases and carbon dioxide decreases 3. Explainhowreturningtonormalbreathingafterhyperventilationdifferedfromhyperventilationwithoutreturningtonormal
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destroyed it will no longer speed up or slow down a reaction. 6. At what pH is the rate of enzyme activity the highest? Lowest? The rate of enzyme activity is highest when the pH buffer level is 11‚ which means it’s an acid. This acid causes the products to increase. The opposite goes with the pH buffer level is 3‚ which means it’s a base. The base neutralizes the base and actually causes a negative slope. 7. How does changing the pH
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CHAPTER ONE INTRODUCTION The student industrial work experience scheme (SIWES) provide the avenue for student in Engineering‚ Natural Science‚ Environment Studies etc. to know much about the course they are studying and give them the grace to know/see possible challenges they are to encounter after graduation. The attachment provides the opportunity for student in Polytechnic for at least four (4) month while student in University for at least (6) month industrial attachment which partially fulfils
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. AIM :. To Determine which Antacid could Neutralize the most Stomach Acid. (Chemistry Project) Project Prepared By: Name Class- Roll no. INDEX page no. Objective 3 Introduction 3 Acids 4 Stomach Acid
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