"Enzyme" Essays and Research Papers

Enzyme

amylase and starch. Introduction The enzyme amylase is found in the human body, it catalyses the hydrolosis of internal glycosidic bonds in polysaccharides, the breakdown of starch into sugars. Amylase is present in human saliva, where it initiates the chemical process of digestion. Enzymes work best at an optimum pH of 7 which is the bodies normal pH. The pH affects the charge of the amino acid at the active site. PH changes affect the structure of an enzyme molecule and therefore affect its ability...

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ENZYMES

it's lowest to do so. However, in cold solutions the starch will take longer as it will in temperatures beyond 40 degrees. Once it reaches this point, the break down will either take a very long period of time or have no reaction at all as enzymes are denatured at a certain point. Materials: · 4 x test tubes · 5mL Diastase · 5mL Water · 10mL 2% Starch Suspension. · Pipette · 2 x Spotting tiles · Large Beaker filled with water of assigned temperature · Thermometer...

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Enzymes

Enzyme as protein Dr.Samina Haq Quantitative and qualitative test for protein and amino acids • 1. 2. 3. 4. 5. 6. Qualitative test Ninhydrin test Biuret test Xanthoproteic test Millons test Hopkins-cole test Nitroprusside test Quantitative test 1. 2. 3. Spectrophotometric assay Protein shows maximum absorbance at 280nm due to presence of tyrosine and tryptophane. Biuret test shows 540nm Lowry test shows 750nm Ninhydrin Test • Amino acid containing a free...

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enzymes

LABORATORY REPORT Activity: Enzyme Activity Name: Angela Collins Instructor: Catherine Rice Date: 07.09.2014 Predictions Sucrase will have the greatest activity at pH 5 Sucrase will have the greatest activity at 70 °C (158 °F) Sucrase activity increases with increasing sucrose concentration Materials and Methods Effect of pH on Enzyme Activity Dependent Variable amount of product (glucose and fructose) produced Independent Variable pH Controlled Variables temperature, amount...

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Enzyme

Examination of the Effects of Inhibitory and Non-Inhibitory Competition, Enzyme-Substrate Concentration, Along with Varying Temperature and pH-Balanced Environments on the Enzyme-Catalyzed Reaction of pNPP Abstract: Introduction: Many of the chemical reactions, which take place in in living things are controlled by enzymes. In such cases, the enzyme is a protein in the cell which lowers the activation energy of a catalyzed reaction, which serves to increase the rate of the reaction. Alkaline...

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Enzymes!!

Enzyme Catalysis Lab Problem: Before the lab, one should understand: • The general functions and activities of enzymes; • The relationship between the structure and function of enzymes • The concept of initial reaction rates of enzymes; • How the concept of free energy relates to enzyme activity; • That change in temperature, pH, enzyme concentration, and substrate concentration can affect the initial reaction rates of enzyme-catalyzed reactions; and • Catalyst, catalysis, and catalase ...

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Enzymes

Biology “Enzyme Activities” Introduction: Enzymes have extremely interesting properties that make them little chemical-reaction machines. The purpose of an enzyme in a cell is to allow the cell to carry out chemical reactions very quickly. These reactions allow the cell to build things or take things apart as needed. This is how a cell grows and reproduces. At the most basic level, a cell is really a little bag full of chemical reactions that are made possible by enzymes (Brain). Laboratory...

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Enzyme

milk Introduction Enzymes are globular protein, responsible for most of the chemical activities of living organisms. They are made up of long chains of amino acids containing carbon, hydrogen, oxygen and nitrogen (Gunsch, 2012). The role of enzyme is to act as catalysts, substances that speed up chemical reactions without being chemically altered during the process. The speeding up of chemical reactions is done by lowering the activation energy required to start a reaction. Enzymes are specific in...

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enzyme

Enzyme Lab Name ___________________________ Assignment 1: Getting to Know Enzyme Lab: Setting Up an Experiment The first screen that appears in Enzyme Lab shows you a biochemistry lab containing all the reagents and equipment you will need to perform your experiments. Click on each item in the lab to learn more about its purpose. Once you are familiar with the lab, click on the Experiment button to begin the first assignment. This assignment is designed to help you become...

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Enzymes

May 1, 2013 Enzymes as Drug Targets Enzymes are defined as any of numerous proteins produced in living cells that accelerate or catalyze the metabolic processes of an organism. Enzymes are usually very selective in the molecules that they act upon, called substrates, often reacting with only a single substrate. The substrate binds to the enzyme at a location called the active site just before the reaction catalyzed by the enzyme takes place. Enzymes can speed up chemical reactions by up to...

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Enzymes: Enzyme and Enzymes- Substrate Complex

What is Enzyme? Enzymes are protein that acts as speed up reactions and break down molecules in our body. However, different enzymes only work on certain types of molecules. Enzymes can accelerate the reactions by more than one million times.(3) In our human body, there are a total about forty thousand types of enzymes and each catalyzes different kind of molecule.(3) The molecules that enzymes help to accelerate is called substrates, and when enzyme is combined together with the substrate, it...

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Enzyme Lab

Enzyme Activity Lab Hypothesis: 1] Are enzymes reusable? Yes, enzymes are reusable. 2] Which of the following do you think contain catalase? [Manganese dioxide, chicken meat, apple, carrot, potato, or chicken liver] I think that the manganese dioxide, apple, and carrot contain the catalase. 3] Would grinding the materials affect enzyme activity? I think that grinding the materials will increase enzyme activity. 4] Would temperature affect enzyme activity? I think that...

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Application of Enzymes

scale Enzyme applications 1. Detergents Bacterial proteinases are still the most important detergent enzymes. Lipases decompose fats into more water-soluble compounds. Amylases are used in detergents to remove starch based stains. 2. Starch hydrolysis and fructose production The use of starch degrading enzymes was the first large scale application of microbial enzymes in food industry. Mainly two enzymes carry out conversion of starch to glucose: alpha-amylase and fungal enzymes. Fructose...

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Enzyme Lab

Abstract Enzyme catalysis was observed in order to analyze how changes in temperature, pH, enzyme concentration, and substrate concentration affected an enzyme-catalyzed reaction. This experiment analyzed the rate of enzyme-catalyzed reactions and observed the correlation between catalase activity and products formed. It was found out that the rate of an enzyme-catalyzed reaction starts off rapidly, decreases, and levels off or completely stops, and can be further affected by environmental factors...

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Effects of Enzyme

Effects of Temperature on Enzyme Biology Introduction In order to understand the activity of enzymes at different temperatures the ability of the enzyme to function can be measured. This is important in many applications such as Polymerase Chain Reaction for forensics as well as genetics research where manipulation of temperature-dependent enzymes allows for replication of DNA segments. Bennett states, “when the energy - measured...

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Introduction to Enzyme

Enzymes Lecture outlines •Catalysis profile •Activation energy & its •Enzyme & substrate substrates •How enzymes bind to •Lock & Key model •Induced-fit model •Enzyme assay Lecture outcomes • At the end of this lecture, students are able to: • Define the catalyst • Understand how enzymes work as catalysts, the concept of activation energy and enzymes-substrate binding • Explain different theories of the relation between enzymes and substrates Catalysis • It is probably...

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Lab Enzymes

Introduction How does changing the surroundings of enzymes affect their reaction rate? The purpose of the experiment is to determine how different abiotic conditions affect the rate at which enzymes accelerate/cause reactions In this lab students measured the height of the foam after catalysis between catalase (enzyme) and 7 other (solutions) to determine which solution had the fastest reaction rate.. The control variable of the experiment would be the solution of only hydrogen peroxide, water...

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Enzyme Amylase

The Rate of Reaction that Enzyme Concentration, pH, and Temperatures Have on the Amylase Enzymes Color Disappearance Abstract: Compare reaction rates of the concentrations, pH’s, and temperatures of the enzyme Amylase. At what concentrates do the substrate molecules collide with each other, making the reaction possible? At what pH levels do the 3D molecular structures change breaking the H-bond and/or denaturize? At what temperatures do the collisions of the substrate molecules happen...

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Enzyme Lab

LABORATORY REPORT (Click on the Save a Copy button on the panel above to save your report) Activity: Enzyme Activity Predictions 1. Sucrase will have the greatest activity at pH 6 2. Sucrase will have the greatest activity at 60 °C (140 °F) 3. Sucrase activity decreases with increasing sucrose concentration. Materials and Methods Effect of pH on Enzyme Activity. 1. Dependent Variable. amount of product (glucose and fructose) produced 2. Independent Variable. pH 3. Controlled Variables...

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Enzyme Activity

Enzyme Catalase Activity in Reaction with the Substrate Hydrogen Peroxide Abstract We performed these experiments to observe the effects of enzymes on the rate of reactions. We tested and compared the activity of the enzyme catalase on the substrate H2O2 in various states and percentages, and observed the absorption values of the enzyme-substrate relationship at different concentrations. Our results show that the more substrate available, the quicker the reaction will happen except in one test...

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Anatomy: Enzymes

Enzymes are organic catalysts, usually proteins that speed up metabolic reactions. They lower the amount of energy needed for reactions to progress in cells. In enzymatic activity, the molecules at the beginning are called substrates. Lactose metabolism is when lactose is destroyed, maintained or produced. For instance, being lactose intolerance that’s where lactose is destroyed. Metal cofactors in enzyme activity are required to function properly. The Effect of Temperature on Enzymatic Activity: ...

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Metabolism and Enzymes

Ch. 4a Metabolism & Enzymes [代謝作用 和 ] Metabolism [代謝作用]: all the chemical reactions taken place inside the living organisms. [在生物體內的全部化學反應] Metabolic processes: eg. photosynthesis, respiration, etc. [代謝過程: 例如 光合作用, 呼吸作用] Types [種類] - catabolism [分解代謝] - breaking down of complex organic molecules into simple molecules. (eg. respiration ) [分解複雜有機分子成為簡單分子 (例如: 呼吸作用)] - anabolism [組成代謝] - building up of complex organic molecules from simple molecules. (eg...

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Enzyme Lab

Factors which Affect the Activity of the Enzyme Catalase Purpose: Must include:  background information about concepts involved in the lab,  statement of purpose of the lab  identification of independent and dependent variables. A hypothesis is often not necessary or appropriate. Enzymes are proteins that speed up chemical reactions in cells. They break down molecules called substrates. Each enzyme has only one substrate that it breaks down. Enzymes are produced in the cells of the body...

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Effects of Enzymes

The Effects on Enzymes By Bailey Rose The Effects on Enzymes Bailey Rose 10/31/2011 Abstract In this lab exercise, the study of enzyme catalase, we viewed the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions.  Changes in temperature and pH along with Substrate Concentration and Enzyme Concentration were the conditions tested in the experiment.  Our class performed...

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Enzymes and Paper

Project Enzymes are organic catalysts produced by living organisms which aid in the progression of specific biochemical reactions without undergoing any permanent chemical changes themselves. They are complex, conjugated proteins necessary and required to sustain life. Today, enzymes are also used world-wide in a variety of different industrial applications such as the production of paper, wine fermentation, and bio-remediation. One of the most important industrial applications enzymes are used...

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Enzyme Activity

on the panel above to save your report) Activity: Name: Instructor: Date: Enzyme Activity Pam Campbell Id 0002337 Dr. Murphy Nmezi August 9, 2011 Predictions 1. Sucrase will have the greatest activity at pH 6 2. Sucrase will have the greatest activity at 40 °C (104 °F) 3. Sucrase activity increases with increasing sucrose concentration until a plateau is reached. Materials and Methods Effect of pH on Enzyme Activity. 1. Dependent Variable. amount of product (glucose and fructose) produced...

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Enzyme Lab

Introduction Enzymes are proteins produced by living organisms to speed up the rate in which chemical reactions occur. This process can happen fast, slowly, or stop the chemical reaction all together depending on the temperature, pH and concentration. Catalase is one of the most common enzymes. It is found in living organisms and is used to break down hydrogen peroxide. This must happen because hydrogen peroxide is considered toxic to cells in the body. However, when catalase is used it breaks...

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Enzyme Paper

there are enzymes, biological catalysts, which help speed up metabolic reactions by lowering the energy barriers without being used up or altered in the reaction. (Campball, 2008) Every enzyme has an optimum pH at which it is most active. An increase or decrease in the pH of the solution will cause the enzyme to have a change in its three dimensional shape. If an enzyme is placed in an environment that is to basic or acidic the reaction will take longer to digest the starch because the enzyme shape has...

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Trypsin Enzyme Research Paper

 Enzyme Assignment Research SBI4U Test A2 Table of Contents 1. What are the function roles and biological significance of the enzyme? Trypsin is part of the digestive system and degrades proteins, making it an enzyme known as protease. [1] It is one of the three principal digestive proteinases, the other two being pepsin and chymotrypsin. [9] Trypsin primarily hydrolyses peptides into smaller building-blocks, mainly amino acids (these peptides...

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Enzyme Catalysis

Enzyme Catalysis Abstract: Catalysis is an enzyme that decomposes hydrogen peroxide into oxygen and water. In this lab we will conduct a series of experiments to determine the affects of; pH, temperature, and concentration change on such catalysis. After completing the experiments we determined that catalase works most efficiently when in a 27°c, 50% (5 ml of catalase – 5ml of water), and a normal body pH of 7°. By: Patrick Jawien Course Code: SBI 4U Performance Date: 25 September 2012 ...

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Enzyme Lab Report

Enzyme lab report. Introduction. An enzyme is a protein molecule that speeds up the rates of chemical reactions by many folds. They recognize, bind, and change specific reactants. They do not change thus can catalyze the same reaction again and again. Activation energy also known as an energy barrier is the amount of energy needed in order to begin a chemical reaction. Catecholase catalyzes the reaction rate of catechol oxidation. Catechol is found beneath the skin of many plants such...

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Enzyme Background Paper

FUNCTIONS OF ENZYMES Enzymes are extremely important to the human body and its ability to function. An enzyme itself is a protein made by the body’s cells to act as catalyst, speeding up chemical reactions in the cell. It does this by taking the reactants, or the elements or compounds that enter into the chemical reaction, in this situation referred to as substrates, and breaking apart their bonds so that new ones can form. The three types of enzymes are digestive enzymes, food enzymes, and metabolic...

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Enzyme Lab Report

Introduction: The purpose of this lab was to measure the extent of enzyme reaction on given substrates by means of color change. The reaction followed is given below: Tyrosinase„³ Enzyme Pyrocatechol Hydroxyquinone Oxidation/Reduction Pink „³ Brown E+S + [ES] = E+P Enzyme Reaction Hypothesis: If there is an increase in enzyme concentration, an increase in reaction temperature, or an increase in buffer pH, then greater...

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Enzymes Mechanism of Action

Enzymes are biologic polymers that catalyze the chemical reactions that make life as we know it possible. The presence and maintenance of a complete and balanced set of enzymes is essential for the breakdown of nutrients to supply energy and chemical building blocks; the assembly of those building blocks into proteins, DNA, membranes, cells, and tissues; and the harnessing of energy to power cell motility, neural function, and muscle contraction. With the exception of catalytic RNA molecules, or...

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Enzyme Kinetics of Beta-Galactosidase

and measure the enzyme activity of β-galactosidase in the different concentrations of o-Nitrophenylgalactoside (ONPG) using a spectrophotometer. The spectrophotometer was also set at 420nm, a wavelength which is best for recording the absorbance values for the experiment. From the results, 0.9mM ONPG solution has the highest absorbance and 0.1mM ONPG solution has the least. Also, 0.5mM ONPG solution has the highest rate of enzyme activity and it is the most efficient as the enzyme activity of the...

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lab report on enzymes

Enzymes What Are Enzymes? Substances that speed up chemical reactions are called catalysts. Organic catalysts are called enzymes. Enzymes are specific for one particular reaction or group of related reactions. Many reactions cannot occur without the correct enzyme present. They are often named by adding "ase" to the name of the substrate. Example: Dehydrogenases are enzymes that remove hydrogen. Induced-fit Theory The shape of the enzyme must match the shape of the substrate...

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Lab Report Enzyme

temperature on the activity of lipase Aim: To investigate the effects of temperature on the activity of lipase enzyme on milk which contain fats or lipids. Introduction: Enzyme is a kind of biological catalyst that made up of protein. It can speed up the metabolic reactions on various kinds of substances. Like lipase can break down lipid into glycerol or fatty acids in milk. Since enzyme is made up of protein which easily affected by varies temperature. This experiment is carried out to find the...

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Effect of Temperature on the Enzyme Lipase

TITLE: Enzymes AIM: To investigate the effect of temperature on the enzyme lipase INTRODUCTION: The phenomenon of catalysis makes possible biochemical reactions necessary for all life processes. Catalysis is defined as the acceleration of a chemical reaction by some substance which itself undergoes no permanent chemical change. The catalysts of biochemical reactions are enzymes and are responsible for bringing about almost all of the chemical reactions in living organisms. Without enzymes, these...

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Immobilized Enzyme

Immobilized Enzyme Immobilized Enzyme * Enzymes which are attached to small bead made of alginate are called immobilized enzyme * However, whatever the nature of an immobilized enzyme, it must comprise two essential functions, namely the non-catalytic functions (NCF) that are designed to aid separation and the catalytic functions (CF) that are designed to convert the target compounds within the time and space desired * Immobilized enzymes might meet the increasing demand by manufacturers...

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Enzyme Controlled Reactions

Virtual Lab: Enzyme Controlled Reactions Worksheet 1. Which of the following does NOT apply to an enzyme: Inorganic 2. When an enzyme catalyzes a reaction: Substrate(s) bind in the active site 3. Which of the following would interfere most with the ability of an enzyme to catalyze a reaction? Reduced concentration of substrate available 4. Feedback mechanisms regulate the rate of enzyme activity, effectively “turning off” an enzyme in a reversible...

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Enzymes in the Dairy Industry

Cellular Biology furthers technology-Enzymes in the Dairy Industry Since ancient times, enzymes have played an important role in food production. Especially in the diary industry, some enzymes are required for the production of cheese, yogurt, and other dairy products, while others are used in a more specialized fashion such as improving texture or flavour of the product. Enzymes are used to catalyze the desirable reactions in industrial processes. Today, enzyme applications in such processing get...

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To Investigate the Action of the Enzyme Catalase

Catalase Lab Introduction: Catalase is an enzyme normally found in many plant and animal tissues. Its purpose is to destroy toxic substances which may be introduced into cells. Also, some cells use catalase to destroy cellular debris or worn out organelles. In this lab, we will use a catalase solution from potatoes and determine the effect of temperature and pH on the action of this enzyme. The substrate of the enzyme will be 3% hydrogen peroxide (H2O2). Catalase works by the following mechanism: ...

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Enzymes: Enzyme and Variable Groups

structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction, called feedback inhibition. Enzymes are catalytic proteins;...

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enzymes in food industry

 Use of Enzymes in Food Industry - Food industry utilizes a variety of enzymes for processing of various foods, e.g., production of various types of syrups from starch or sucrose (a- and β-amylases, glucamylase, pullulanase, invertase, and glucose isomerase), meat/protein processing using proteases, removal of glucose and or molecular oxygen (O2) using glucose oxidase and catalase, use of lactase in dairy industry and use of enzymes in fruit juice and brewing industries. Glucose oxides are obtained...

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Enzyme Lab Report

Enzyme Reaction to Variable Elizabeth Alvidrez University of Texas at El Paso Abstract: An enzyme is a protein that serves as a biological catalyst (Denniston, 2007). Metabolic reactions happen with in cells. Enzymes are proteins that are used to speed up these reactions without being consumed by them (Mader, 2010). Catalase is a catalyst that digests potent hydrogen peroxide and converts it into H2O and O (Campbell Reese, 2008). The environment plays an important role...

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Enzymes Lab Report

Enzymes Lab Report Inroduction In this lab we explore an enzymes activity and how it can be affected by changes to its environment. An enzyme is a protein and is a catalyst to chemical reactions. It helps accelerate reactions by lowering the activation energy, which is needed for reactions in cells to progress at a higher rate. Activation energy is the minimum amount of energy needed for a chemical reaction to occur, yielding products from a given set of reactants. (Unit 7: Enzymes lab) Products...

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The Effect of Temperature on the Enzyme Catalase

Abstract The aim of this experiment was to investigate the effect of temperature on the enzyme catalase. The original research question was exploring the effect temperature would have on a yeast catalase reacting with hydrogen peroxide (H2O2). To address the latter question a series of experiments were conducted. The various temperatures experimented with were as follows: 22 degrees Celsius (room temperature), 0 degrees Celsius (freezing), 100 degrees Celsius (boiling), and 37 degrees Celsius....

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Lab report on enzyme activity.

INTRODUCTION Enzymes are a protein serving as a catalyst, a chemical agent that changes the rate of the reaction without being consumed by the reaction. Enzymes are proteins made up of long chains of amino acids. These form complex shapes. The enzymes are individuals, like the different players on a ball team, they have different specific structures and jobs. As one ball player may be very tall and one short, the specific different shape of the active site on an enzyme is unique and prepares it...

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The Importance of Enzymes in Plants and Animals

Enzymes and their importance in plants and animals (25 marks) Enzymes are biological catalysts, which accelerate the speed of chemical reactions in the body without being used up or changed in the process. Animals and plants contain enzymes which help break down fats, carbohydrates and proteins into smaller molecules the cells can use to get energy and carry out the processes that allow the plant or animal to survive. Without enzymes, most physiological processes would not take place. Hundreds of...

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Biology Enzyme Lab

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 we assume the more substrate an enzyme gets...

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Enzyme Lab Report

Lab: Catalase (Enzymes) Abstract In this laboratory exercise, studies of enzyme catalase, which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme Concentration...

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Biology enzyme and temperature prac

Temperature and enzyme activity Aim: To determine the effect of which the temperature of the enzyme has on the rate of the enzyme catalysed reaction. Hypothesis: The rate of reaction of an enzyme catalysed reaction will increase as the temperature of the enzyme approaches the optimum temperature. Surpassing the optimum temperature will result in a drop in enzyme activity. Materials: 6% hydrogen peroxide Liver suspension 10 test tubes 4 beakers Thermometers Measuring cylinders Test...

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Effect of Temperature on Enzyme Activity

the Effect of Temperature on Enzyme Activity Almost all chemical reactions that occur in living organisms are catalyzed by enzymes. Many factors in a cell’s environment affect the action of an enzyme. In this investigation, you will design an experiment to determine the effect of temperature on an enzyme-catalyzed reaction. You will complete an entire lab write-up using the CHS LAB REPORT FORMAT. Fundamental Question How does temperature affect the rate of an enzyme-catalyzed reaction? Materials ...

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Importance of Digestive Enzymes

ENZYME TIME (posted 9-7) Written by: Len Davis Creatine. Check. Arginine. Check. Protein powder. Check. Enzymes. Che . . . wait, what was that last one? You may not think of them as you compile your supplement shopping list, but enzyme products can be a smart choice for packing on muscle mass. Traditionally, enzymes are known as a digestive aid, but studies have shown that they also play an important role in recovery from high-intensity training, making them a prime addition to a bodybuilding...

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All About Enzymes

Enzymes An enzyme is a protein used to speed up the rate of a chemical reaction. Because they regulate the rate of chemical reactions, they are also called catalysts. There are many, many different types of enzymes, because for each chemical reaction that occurs, an enzyme specific to that reaction must be made. To act on a substrate, an enzyme must contain an active site. The active site is the area on the enzyme that allows the substrate and enzyme to fit together. The amino acids that are present...

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Enzyme Formal Lab

Investigation on the effects of Temperature, pH levels, and Enzyme Concentration on the reaction rate of the Decomposition of Hydrogen Peroxide by Catalase The purpose of this investigation is to figure out how temperature, pH, and enzyme concentration affect the reaction rate of an enzyme. It’s important to understand how certain factors affect enzymes because of their crucial role in the metabolic processes of life. Enzymes lower the activation energy necessary for a chemical reaction to...

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Bio Enzyme Lab

Enzyme Lab Experiments Problem: How can we demonstrate how enzymes work? What happens if we alter the environment of an enzyme? Materials: G;lucose Test Strips Test Tubes Pipettes Raw Hamburg Lettuce Potato Raw Liver Chalk Beakers Dairy Lactose Tablet Water Sugar Solo Cups Hot Plate Knife Gloves Skim Milk Glow Sticks Peroxide Hypothesis: 1. If we change the environment via temperature the glow stick will Its intensity will change 2. If hydrogen peroxide is added to a certain food liver...

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enzyme lab report

Title: Enzyme Catalysis of Hydrogen Peroxide by Catalase Problem and Objectives: How do different temperatures and different levels of pH affect the reaction rate of the enzymes in chicken liver? Demonstrate the activity of an enzyme in living tissue, observe the effects of changes in temperature and pH on the activity of an enzyme, perform analyses for the presence of an enzyme in tissues, and analyzing relationships between environmental conditions and enzyme activity. Background: Cells produce...

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Practical: Enzymes and Reactions

Temperature and Enzyme Activity Aim: To investigate the effect of temperature on enzyme activity Hypothesis: As the temperature deviates from 40°C the activity will lower Equipment: – Chemicals: – Milk – Junket tablets – Hot water – Ice – Test tubes – Stopwatch – Measuring cylinder Risk Assessment: |Hazard |Risk |Prevention | |Hot Water ...

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Literature Review on Digestive Enzymes

INTRODUCTION OF ENZYMES Enzymes are complex proteins that cause a specific chemical change in all parts of the body (David C. Dugdale, 2011). When we understand enzymes we understand cells (Marshall Brian, 2001). In many organisms most chemical reactions are catalyzed -when a substance speeds up the rate of a chemical reaction- by enzymes. Each enzyme controls a certain function that happens in a cell. Still each one has its own process and rate that it converts molecules. Studying enzymes shows how chemical...

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