Objective: To investigates the enzymatic effect of various materials in the hydrogen peroxide solution. Apparatus & Equipment: Beaker Test tubes Either: water bath (95oC) or Bunsen burner Materials: Fresh Liver Potato cubes Manganese dioxide Hydrogen peroxide** Wood splints **Caution: Hydrogen peroxide is formed continuously as a by-product of chemical reactions in living cells; it is a very toxic (poisonous) substance. [Note: using boiling tubes may provide
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complete. Chemists also need to monitor how acidic or alkaline waste solutions from industries are before they are pumped into rivers or the sea. Regulations are strict as wastes or effluent that are too acidic or too basic can be harmful to the environment. • • Many people who are not chemists use indicators for: The water in aquariums needs to be tested. Fish are sensitive to changes in their water. If the water becomes too alkaline or too acidic it will kill fish and plants. The water in
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Ryan Kawiecki Ms. Lahr Ap-Biology September 17‚ 2013 Title: The Effect of Abiotic and Biotic Factors on Enzymatic Reactions Problem: Will increased pH affect the rate of reaction in an enzyme catalyzed reaction? Hypothesis: Increased pH substance will increase the rate of reaction Table: Table 1: Baseline of peroxide Time (min) Qualitative color 1:00 5 2:00 6 3:00 7 4:00 8 5:00 9 Table 2: effect of increased pH on peroxidase Increased pH by 5mL Color intensity
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Effects of Temperature and Cofactors on Enzymatic Reactions “I pledge that no unauthorized assistance has been given or received in the completion of this work. Experiments described were performed by me and/or my lab group and this write-up is entirely my own creative work.” X________________________________________ Introduction Enzymes are protein molecules that speed up the rate of reactions by reducing the activation energy of a reaction. They act as catalysts in reactions‚ increasing
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released by USDA‚ in a 200-ml cup of tea‚ the mean total content of flavonoids is 266.68 mg for green tea‚ and 233.12 mg for black tea.[6] Of all the catechins in tea‚ EGCG is the main subject of scientific study with regard to its potential health effects.[1][2][4][5] ------------------------------------------------- [edit]Theaflavins Darjeeling black tea infusion: Finer black tea has a more orange tone than red as a result of higher theaflavins content. Catechin monomer structures are metabolized
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The poem harmonium examines the relationship of a father and son. I think Armitage has written this poem for parents and children as they would be able to relate to the emotions in the poem. The Author uses the Farrand Chappelette which is a type of Harmonium or small organ to help him reflect the love that he has for his father. In the first stanza the poet talks about the Farrand Chappelette which was “gathering dust” telling us that it is getting old and it was due to be taken to the skip if Armitage
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Alterations in Fluids‚ Electrolytes‚ and Acid-Base Balance Composition & Compartment Distribution of Body Fluids ← Body fluids are distributed between the intracellular fluid (ICF) and extracellular fluid (ECF) compartments. The ICF compartment consists of fluid contained within all of the billions of cells in the body. It is the larger of the two compartments‚ containing approximately two thirds of the body water in healthy adults. ← The remaining one third of body water is in
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Date: 03/20/2013 Lab: # Purpose of this lab: To test for the effects of temperature on catalase activity. Introduction: Enzymes are proteins that act as catalysts and help complex reactions to occur everywhere in life. Enzymes affect a chemical reaction by acting as a catalyst‚ which is to say‚ it speeds up the reaction. However‚ extreme ph and temperature hinders enzyme function. Optimal activity of an enzyme is the optimal environment that an enzyme requires to function
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The St Venant Equations Dr P A Sleigh Dr I M Goodwill School of Civil Engineering‚ University of Leeds March 2000 1 THE DERIVATION OF THE CONTINUITY EQUATION ...........................................................................................1 2 THE DERIVATION OF THE DYNAMIC OR MOMENTUM EQUATION. ...............................................................2 3 THE SOLUTION OF THE ST VENANT EQUATIONS ...................................................................
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Title : THE EFFECT OF PH ON THE ACTIVITY OF CATALASE Aim : To study the effect of pH on the activity of catalase. Introduction : Catalase‚ an enzyme found in many different tissues‚ catalyses the breakdown of hydrogen peroxide into water and oxygen. 2 H202 → 2H20 + O2 Hydrogen peroxide is a toxic substance that can be formed during aerobic respiration and catalase removes this product. The activity of catalase can be measured by finding the rate of oxygen release from hydrogen peroxide
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