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Catalase Enzyme Ph Lab Report

allUploadSign inJoin LAB REPORTExercise 11EnzymesFactors Affecting the Rate of ActivityJim GoetzLab Section 12March 13, 2012 Introduction Living organisms produce enzymes to speed up chemical reactions in their cells have a peek at this web-site (Hershey 2009).Enzymes break down molecules called substrates. Each catalase and hydrogen peroxide lab results enzyme has only one substrate in whichit breaks down. The location enzymes enzyme catalase lab report example are produced is in the cells of the body. They affect therate of almost all chemical reactions that enzyme catalase lab answers take place in living organisms. Enzyme activity ratesare influenced by temperature, pH, and the presence of inhibitors.Catalase is an enzyme, which is produced by every cell. Its purpose is liver catalase lab report to break down hydrogenperoxide (H2O2). Hydrogen peroxide is a waste product of cellular activity. It is poisonous tocells. Catalase speeds up the decomposition of hydrogen peroxide into harmless water andoxygen gas (2 H2O2-  catalase  2 H20 + O2)Excessive heat will denature enzymes. Denaturization is loss of its structure. This occurs asionic and hydrogen bonds break. Salty

Catalase And Hydrogen Peroxide Experiment Ph

environments (excess Na+ and Cl-), acidicenvironments (too much H+), and alkaline environments (too little H+ ) break ionic andhydrogen bonds. This interferes with their electric charges. Heat causes movement withinmolecules. This disturbes their relatively weak bonds. The pH of a solution will also affectthe charge of acidic and basic amino acid side chains on a protein, affecting the interactions thatlead to tertiary and quaternary protein structure . Once denaturated, most proteins will not re-form their original shape. Enzymes react faster near optimum temperature (Brooker, 2008).The optimal temperature for the human enzyme is 40 degrees C, while the optimum temperaturefor enzyme from hot springs prokaryotes is 70 degrees C.The purpose of this lab was to determine if an inhibitor affects the rate of activity for enzymecatalase. As catalase speeds up the production of oxygen gas; we are able to measure the rate of  enzyme activity, which can be measured as the height of the column of oxygen gas bubblesproduced in a test tube. If NaOH or HCL inhibits the action of catalase, then


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Enzyme Activity Lab Report Answers

Share Embed Liked Like Present Remotely Send the link below via email enzyme activity lab report discussion or IMCopy Present to your audienceStart remote presentationInvited audience members will follow you as you navigate and presentPeople invited enzyme lab report temperature to a presentation do not need a Prezi accountThis link expires 10 minutes after you close the presentationA maximum of 30 users can follow your presentationLearn more about this feature in our https://www.scribd.com/doc/86678318/Lab-Report-Enzymes knowledge base article Do you really want to delete this prezi? Neither you, nor the coeditors you shared it with will be able to recover it again. DeleteCancelMake your likes visible on Facebook? Connect your Facebook account to Prezi and let your likes appear on your timeline. You can change this under Settings & Account at any time. No, thanksConnect with FacebookThe effect of https://prezi.com/zc_r4lwyvy8z/the-effect-of-ph-on-the-rate-of-which-catylase-breaks-down-hydrogen-peroxide/ pH on the rate of which Catylase breaks down Hydrogen Peroxide No description by stephen turban on 17 September 2012 TweetComments (0) Please log in to add your comment. Report abuseTranscript of The effect of pH on the rate of which Catylase breaks down Hydrogen PeroxideBy Stephen Turban The effect of pH on the rate of which Catylase breaks down Hydrogen Peroxide Contributors - Aniqa and Vikrum Head Body Body Body Body Body Body Body Body Body Body Body Body Introduction The Original Most Interesting Man in the World What is the effect of pH levels on the rate of which catalase breaks down hydrogen peroxide? Question Context Hypothesis: When pH is seven the rate catalase breaks down h202 will be the greatest compared to both pH4 and pH 10 We have already observed that Enzymes have “optimal conditions”. We know that if a pH is too low, or too acidic, then there be a lot more hydrogen than the enzyme normally would exist in. This will cause the tertiary structure to be disrupted, and for the enzyme to denature (Campbell)– making it unable to regulate chemical reaction. L

H2O2 (Hydrogen Peroxide) is a by-product that our cells create as part of normal cell processes, however hydrogen peroxide is have a peek here toxic to our cells. Thankfully, there is an http://enzymelabb4takaikirazis.weebly.com/ enzyme called catalase that breaks down hydrogen peroxide into water and oxygen. Catalase prevents hydrogen peroxide from building up and killing our cells. By investigating the pH at which there is high catalase activity, we can see that if our body were at a different pH, the catalase may not be able to work as well and thus we might be poisoned Lab Report by hydrogen peroxide. We can also use this experiment to determine the optimum pH for catalase activity, so we can see if it matches our body’s pH, and if the optimum pH and our body’s pH are different, we can figure out how to speed up the catalase activity by changing the pH. Hypothesis:If the pH thecatalase is subject to is catalase and hydrogen acidic (low pH) then there will be more enzyme activity than if it were subject to a base, because the enzymecatalase is specific to breaking down hydrogen peroxide, andhydrogen peroxide is an acid, socatalase should work best in an acidic environment.Variables:The independentvariable is the pH of the substance that the potato is submerged in along with hydrogen peroxide. We will manipulate the independent variable by subjecting the potato to three different pH substances, one low pH, one neutral pH, and one high pH.The dependent variable is catalase activity. We will measure catalase activity by using a thermometer to measure the temperature of the catalase and hydrogen peroxide mixture after the independent variable substance has been added.The Constants: Because having different amounts of catalase may result in more or less catalase activity and thus cause the temperatures of the trials to be inconsistent, a constant is the amount of catalase used. We will control the amount of catalase used in each trial by using a potato as our source of catalase and using a ruler to measure and cut the potato into 1cm by

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