This lab is adapted from the canned denatured pineapple experiment. Instead of investigating the effect of canning on enzyme activity‚ we look for the presence of the substrate. This is a useful teaching lab for all the criteria and requires very few resources. Background Information: Gelatin is made from a protein called collagen which comes from the joints of animals. Gelatin may be dissolved in hot water. As the dissolved gelatin mixture cools‚ the collagen forms into a matrix that
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Ms. Balmer Pineapple Jelly Enzyme Lab Discussion After completing the Pineapple Jell-O Enzyme lab‚ the final results were that the canned pineapple formed the jelly while the fresh pineapple did not. Pineapple In order for this to have occurred‚ there has to be a comparison between fresh and canned pineapple in terms of their physical and chemical properties. The physical properties of fresh pineapple are that it is sweet‚ ripe and raw. These properties make fresh pineapples very healthy and
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Lab 6: Enzymes . header Purpose: The purpose of this lab is to test for enzyme activity‚ look at enzyme specificity‚ and how temperature affects enzyme activity. Time need to perform this lab: approximately 3 hours Preparation FIRST: Read the lab in its entirety TWICE before you begin. You will perform the experiment‚ write your lab report and include the answers to the additional 4 questions within the text for full credit on this experiment. Materials: •3% hydrogen peroxide •a
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The Effect of Pineapple Juice on the Gelling Time of Gelatin Abstract: Fresh pineapple is known for not being able to gel and this experiment is aimed to figure out why. Bromelain is an enzyme the breaks the chains in proteins making them inactive and pineapple are known for having it. In this experiment we tested other factors that pineapple contain to pin point what the culprit was. It was discovered the Bromelain was actually the reason that fresh pineapple won’t gel but if you boil
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The Fragility of an Enzyme Purpose: To see how easily enzyme function can be destroyed. Hypothesis: I think that the bowl with only Jell-O will set as will the bowl with heated pineapple but the Jell-O with fresh‚ uncooked pineapple will not set. Materials: Part of a fresh pineapple A blender or a fine cheese grater 3 small bowls A small box of Jell-O Pot Stove Refrigerator 2 tablespoons Procedure: 1. Cut the pineapple to remove any skin. Blend/grate the pineapple into a thick‚ pulpy
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Enzymes in Pineapple Background: Enzymes are very efficient catalysts for biochemical reactions. They speed up reactions by providing an alternative reaction pathway of lower activation energy. Like all catalysts‚ enzymes take part in the reaction - that is how they provide an alternative reaction pathway. But they do not undergo permanent changes and so remain unchanged at the end of the reaction. They can only alter the rate of reaction‚ not the position of the equilibrium. Enzymes are usually
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Substitute lab for Unit 6 lesson 3: Stoichiometry: Counting by Measuring Mass Purpose Determine the mass of several samples of chemical elements and compounds and use the data to count atoms. Procedure Start Virtual ChemLab and select Counting by Measuring Mass from the list of assignments. The lab will open in the Calorimetry laboratory. Part 1‚ Measuring Metal 1. Click on the Stockroom. Click on the Metals sample cabinet. Open the top drawer by clicking on it. When you open the drawer‚ a
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Michael Sherman Unit 6 Lab The first step for risk management would be identifying all of your assets. These assets can include the servers you use to sell your electronic parts‚ as well as all of your data‚ from customer information to the data to build the parts you sell. It also includes any networking devices and end user workstations. Evaluate what the cost to your company would be if these assets went down. How would the current confidentiality‚ integrity‚ or availability be affected
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Sample Lab Report: 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
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Lab 6.C Hypothesis: If enzyme activity is affected by the pH of a solution‚ then the enzymes will experience the greatest activity at a pH of 6. Variables: Independent Variables Dependent Variable Controls Four different pH values (10‚ 7‚ 6‚ and 3) Change in color of the solution The amount of potato extract‚ pH solution‚ and catechol used (1 cm +/- .1cm) Size of the test tubes Amount of time allowed for the catechol to sit with the potato extract and pH solution (20 minutes with 5
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