ESTIMATION OF MAJOR TISSUE CATALASE ACTIVITY OF DDVP-TREATED PALM WEEVIL (RYNCHOPHORUS PHOENICIS) LARVA BY ADEWUMI‚ SEGUN JOHN BCH/07/1313 IN PARTIAL FULFILMENT FOR THE AWARD OF BACHELORS IN TECHNOLOGY (B. TECH.) IN APPLIED BIOCHEMISTRY IN THE DEPARTMENT OF BIOCHEMSISTRY‚ FEDERAL UNIVERISTY OF TECHNOLOGY‚ AKURE‚ ONDO STATE OCTOBER‚ 2012 CERTIFICATION This is to certify that this project work was carried out by Adewumi Segun John‚ with matriculation number BCH/07/1313‚ student of the Department
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Chemistry Review (mid-term) 1. Use the equation for atomic mass to answer the following questions. (http://johnheilchem10.escuelacampoalegre.wikispaces.net/file/view/average+atomic+mass+calculations+-+3.pdf) 1. Argon has three naturally occurring isotopes: argon-36‚ argon-38‚ and argon-40. Based on argon’sreported atomic mass‚ which isotope do you think is the most abundant in nature? Explain. 2. Copper is made of two isotopes. Copper-63 is 69.17% abundant and it has a mass of 62.9296 amu.
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Many organisms can decompose hydrogen peroxide (H2O2) enzymatically. Enzymes are globular proteins‚ responsible for most of the chemical activities of living organisms. They act as catalysts‚ substances that speed up chemical reactions without being destroyed or altered during the process. Enzymes are extremely efficient and may be used over and over again. One enzyme may catalyze thousands of reactions every second. At the start of the reaction‚ there is no product‚ and the concentration is the
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Research Question Does the concentration of substrate (H2O2 (hydrogen peroxide)) have an effect on the activity of the enzyme (catalase)? Theory The higher the substrate concentration the more quickly product is produced (rate of reaction increases) until enzyme saturation is reached at which time more substrate has no further effect. Enzymes such as Catalase are protein molecules which are found in living cells. They are used to speed up specific reactions in the cells. They are all
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affect the activity of an enzyme to the point where is no longer serves its vital function. Three factors are temperature‚ pH and substrate concentration. Catalase is an enzyme that is found in most living cells in the blood that catalyses the decomposition of hydrogen peroxide into water and oxygen. Aim: to test the effect of temperature increase‚ change in pH and change in substrate concentrations on the enzyme; catalase‚ in the form of potato Hypothesis: the optimum temperature for catalase
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for the removal of glucose or oxygen from the food stuffs in order to enhance their storability. Hydrogen peroxide (H2O2) effectively kills bacteria; it can be eliminated by using catalase. An important application of these enzymes is in the processing of egg white for use in baking industry. The egg white is treated with a mixture of glucose oxidase and catalase; additional H2O2 (0.1 % w/w) is added to provide sufficient O2 for glucose oxidase action. The glucose present in egg white is oxidised
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of concentrated (14.8M) NH4OH solution. This was stirred for several minutes before adding 15.0035g (0.05155mol) of Co(NO3)2-(H2O)6 that had been dissolved in 30mL of distilled H2O. To this resulting solution was added 8mL of a 30% solution of H2O2. H2O2 was handled with extreme care and with gloves due to its corrosive nature. This total solution was then concentrated by evaporation over a hot plate with a steady flow of N2 to increase evaporation speed. This solution was kept just under boiling
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Controlling n-Heptane HCCI Combustion With Partial Reforming: Experimental Results and Modeling Analysis Vahid Hosseini W. Stuart Neill Institute for Chemical Process and Environmental Technology‚ National Research Council‚ Ottawa‚ ON‚ K1A 0R6‚ Canada M. David Checkel University of Alberta‚ Edmonton‚ AB‚ T6G 2G8‚ Canada 1 One potential method for controlling the combustion phasing of a homogeneous charge compression ignition (HCCI) engine is to vary the fuel chemistry using two
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potassium hydroxide contains which of the following species? A. KCl(s) B. 2 OH-1 C. (CH3CH2)2NH2 (aq) D. H3O+1 E. (CH3CH2)2NH2+1 (aq) 3. In the chemical reaction 5H2O2 + 2MnO4- + 6H+ ( 2Mn2+ + 8H2O + 5O2‚ the oxidizing agent is A. H2O2. B. MnO4-1. C. H+. D. Mn2+. E. O2. 4. It takes 32.0 seconds for ammonia gas to effuse down a capillary tube. How long will it take for hydrogen chloride
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low acidity‚ anything less than 1.0 x 10-3M‚ the effect of the hydrogen ion is negligible. To calculate the rate‚ the experiment will have to utilize the rate equation‚ which is expressed as Rate = k[H2O2]a[I-]b. At low acidity‚ the rate of the Hydrogen ion will not change‚ from our equation: H2O2 (aq) + 2I- (aq) + 2H+ (aq) → I2 (aq) + 2H2O (l). Eqn. 1 If the rate in hydrogen does not change‚ it makes it easier to solve for the other rate constant. In this experiment‚ sodium thiosulfate
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