test tube 3 6 2.6 Errors 6 3. Conclusion and Evaluation 6 3.1. Conclusion 6 3.2. Evaluation 7 3.2.1. Random Errors 7 3.2.2. Systematic Errors 7 3.3. Improvements 7 1 Design Look to sheet titled: ’Investigating the action of the enzyme catalase’ 1 1.1 Variables The independent variables are the acids used‚ the dependant variables the height of the bubbles formed and the control variables the test
Premium Oxygen Hydrogen peroxide Catalase
Date: Wednesday‚ November 16‚ 2011 Holly Lawson - white Title: API 20E Introduction: The general principle of the experiment is to use a battery of biochemical tests for identification of enteric bacteria. This testing system consists of a strip containing 20 chambers‚ each consisting of a microtube and a cupule to allow testing of 20 different tests nearly simultaneously. Materials: inoculating loop‚ test tube containing 5 ml of sterile saline‚ wash bottle of water‚ plastic API
Premium Hydrogen peroxide Bacteria Amino acid
large molecules and detoxify hazardous substances. It contains enzymes like oxidase‚ which can create hydrogen peroxide as a byproduct of its enzymatic reactions. Within the peroxisome‚ hydrogen peroxide can then be converted to water by enzymes like catalase and peroxidase. Glyoxysomes Glyoxysomes are specialized peroxisomes found in plants and mold‚ which help to convert stored lipids into carbohydrates so they can be used for plant growth. In glyoxysomes the fatty acids are hydrolyzed to acetyl-CoA
Premium Metabolism Enzyme Cell
Investigating the effect of changing substrate concentration on the activity of the enzyme catalase The aim of this experiment is to examine how the concentration of a substrate (hydrogen peroxide) affects the rate of reaction of an enzyme catalyse (found in liver cells) Research Question: how does changing the concentration of the substrate affect the rate of reaction of the enzyme catalyse? Hypothesis: As the concentration of the substrate increases‚ so does the rate of reaction until the reaction
Premium Enzyme Oxygen Catalysis
"To See What Factors Affect The Decomposition Of Hydrogen Peroxide By The Enzyme Catalase Which Is Found In The Liver" Introduction: Enzymes are biological catalysts. They speed up the chemical reactions which go on inside living things. Without them the reactions would be so slow that life would grind to a halt. Enzymes work by when a substrate molecule bumps into a molecule of the right enzyme‚ it fits into a depression on the surface of the enzyme molecule. This depression is called the
Premium Enzyme Oxygen Chemical reaction
LAB: Substrate Concentration Affecting the Rate of Enzyme Activity: Through the Experiment of Beef Liver Puree and Hydrogen Peroxide Research Question Does different amount of substrate affect the rate of enzyme activities? Purpose To examine how different types of concentration (Hydrogen Peroxide) affect the rate of enzyme activity. Hypothesis We believe that if there is more substrate concentrated‚ then there will be an increase in the rate of enzyme activity. This is because
Premium Enzyme Oxygen Hydrogen peroxide
Purpose 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
Premium Enzyme Metabolism Catalysis
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
Premium Enzyme Catalysis Chemical reaction
A little way down the digestive tract‚ intestine enzymes need a pH of 8. 4. Why did the hamburger and liver react differently with hydrogen peroxide? They have natural catalase enzymes which were broken down with the presence of hydrogen peroxide. 5. What is the job of the lactase enzyme? Lactase is an enzyme which breaks down lactose‚ a sugar found in milk and other dairy products. 6. In which test tubes was the
Premium Oxygen Enzyme Hydrogen peroxide
were; 4 °C‚ room temperature which was 22°C‚ body temperature which is 37°C‚ and 77°C. The total time of each trial was 2 and a half minute‚ 1 minute for the H2O2 to acclimatize to the temperature‚ 1 and a half minutes for the reaction to occur. Catalase causes Hydrogen Peroxide to break down into water and oxygen. Therefore the difference of enzyme rate reaction was determined by putting liver into hydrogen peroxide mixed with detergent and the oxygen. The detergent will capture this oxygen visualizing
Premium Enzyme Oxygen Metabolism