regular hydrogen peroxide 1%‚ 25%‚ 50%‚ 75%‚ and 100% substrate concentration tweezers timer permanent marker pen/pencil paper for data PROCEDURE: The experiment begins with five beakers full of various substrate concentrations. To begin the lab‚ gather five plastic‚ Solo cups and label them 1%‚ 25%‚ 50%‚ 75%‚ and 100% with the permanent marker. Then‚ fill each cup with 75 mL of regular hydrogen peroxide. After‚ lightly dip the filter paper into the 1% substrate concentration till it is completely
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BIOL 1364 LABORATORY EXERCISE 3 ________________________________________________________________________ INHERITANCE OF CHARACTERS Objectives of the Laboratory: i) Determination of the genetic control of seed colour‚ ie how many genes control seed colour‚ what sort of intra allelic (dominance relationship) and interallelic interactions (independent assortment vs epistasis) govern the inheritance of seed colour. ii) Understand the scientific process involved in studying character
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Lab report nº4 The aim of this experiment was to observe the change of enzyme reaction with different concentration of solution. For this experiment we used potato enzymes (catalase) and hydrogen peroxide in concentrations of 100%‚ 80%‚ 60%‚ 40%‚ and 20% According to P.George: “When catalase is added to hydrogen peroxide‚ there is an initial rapid evolution of oxygen which lasts for about two minutes‚ depending on the peroxide concentration. After this‚ oxygen is given off at a steady rate which
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Caselet 1 Kinetic Engineering Limited (KEL) has created a buzz in biking circles with its announcement of introducing the 250 cc cruiser Aquila of Hyosung Motors of Korea. It has generated curiosity and interest among bike enthusiasts in the country. The bike is being promoted as a ’real’ cruiser. It is fitted with a 250 cc. v-twin‚ oil-cooled engine with four valves per cylinder. It has an output of 26 bhp. with top speed of over 130 kmph. The company is the first to introduce this high-end bike
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to determine the optimum temperature range for the activity of the enzyme lactase. Extreme temperatures can have a detrimental effect on enzymes; very hot temperatures can cause the denaturation in the enzyme‚ which is the loss of protein structure. This causes a change in the shape of the enzyme leading to its inability to perform its function. As previously stated‚ the alternate hypothesis read: the optimal temperature range for lactase activity is between 23 to 25 ℃. The alternate hypothesis presented
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Lab report April 14‚ 2013 Abstract: In this article‚ we will experiment on the significant in strength of the enzyme by using three different test tubes and measuring the amount of product they give off. To determine this we are going to test the amount of color absorbance by using a special tool to help us understand our results. We will see how our end results show the effect of the amount of concentration we apply to each test tube. The results would be shown by the support of two graphs
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Danny Fish 10/9/11 Chemical Testing To identify An Unknown The hypothesis tested was that depending on the solution presented‚ which would test positive for one of the following‚ proteins‚ carbohydrates‚ or lipids through use of chemical testing. (Sudan IV‚ Benedicts’ Solution‚ Iodine‚ Biuret’s) . In order to gain more information for the hypothesis‚ one must know how to test for said macromolecule. Each of the above stated molecules has their own individual solution that will in turn identify
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Hypothesis: If pH is increased or decreased past the enzyme’s optimum pH‚ the number of products produced by the enzyme will decrease because the enzyme will become denatured. Variables: The Independent variable is the pH of the environment. The uncertainty of pH is ± 1. pH is a unitless value. The Dependent variable is the number of products produced. The uncertainty of this this measurement is ± 1 product. In order for this experiment to be controlled‚ many variable were identified and held constant
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LABORATORY REPORT Activity: Enzyme Activity Name: Daniel Franco Instructor: Professor Jennifer Frere Date: 03.08.2015 Predictions Sucrase will have the greatest activity at pH 6 Sucrase will have the greatest activity at 60 °C (140 °F) Sucrase activity decreases 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 of
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A KINETIC STUDY OF AN IODINE CLOCK REACTION PURPOSE To investigate the kinetics of the reaction that occurs between iodide and persulfate ion. You will: (1) determine the rate law‚ (2) determine the numerical value of the rate constant at room temperature‚ (3) explore the effect of temperature on the reaction and determine the activation energy (Ea)‚ and (4) investigate catalytic activity of selected metal ions on the reaction. INTRODUCTION Reaction times vary from picoseconds (10-12 seconds)
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