Hypothesis: the higher the concentration of hydrogen peroxide the faster the reaction will occur and the more foam will be produced. Aim: The aim of this investigation is to determine how the concentration of hydrogen peroxide effects the intensity of the reaction. Variables: Independent- The concentration of hydrogen peroxide. Dependant - The intensity of the reaction. Constants – The temperature‚ the amount of liver‚ pH level‚ test time‚ Materials: Solutions of hydrogen peroxide varying
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AN INSIGHT INTO THE WORLD OF CHANDIGARH The City Beautiful Chandigarh is a city and union territory in India that serves as the capital of two states‚ Punjab and Haryana . It is also referred to as The City Beautiful due to its beautiful surroundings‚ central grid of gardens‚ each dedicated to different species of flora. The city of Chandigarh was the first planned city in India and is known internationally for its architecture and urban design. The city has projects designed by architects
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they come into contact with atmospheric oxygen. As the pH of solution increases‚ so does the degree of browning of the apple slice. Low pH solutions will cause the enzyme to be inactivated and therefore cause the degree of browning to decrease. As the pH increases so does the degree of browning‚ because the pH becomes closer to the enzymes optimum pH level. Independent Variable: The pH solutions that the apple pieces are placed into. Range of pH levels to be tested is 3‚ 6‚ 8‚ 10‚ and 12. Each solution
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Division Ave. High School Ms. Foglia AP Biology Metabolism & Enzymes AP Biology 2007-2008 Forms of Energy Energy Is the capacity to cause change Exists in various forms‚ of which some can perform work Kinetic energy Is the energy associated with motion Potential energy Is stored in the location of matter Includes chemical energy stored in molecular structure AP Biology 1 Division Ave. High School Ms. Foglia AP Biology Energy
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The enzyme tyrosinase was successively extracted by combining a homogenate of a potato and sodium sulfate with ammonium sulfate. Tyrosinase was successfully extracted by taking advantage of solubility properties of certain proteins. A standard curve was generated indicating dopachrome absorbance values through the use of a spectrophotometer and a computer graphing program. A spectrophotometer was used to measure either the amount of light that passed through a solution (transmittance) of the amount
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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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How does the amount of dissolved NaCl in water effect the volume of one drop? Aim: This experiment plans to measure the volume of one drop of water and compare it the volume of one drop of sodium chloride solution. What will be attempted by this experiment is to measure the volume of one drop of distilled water by measuring a control and comparing it the volume of one drop of distilled water with dissolved NaCl. This will be done by using a burette for dropping the distilled water and a electrolyte
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Six Factors Affecting the Performance of an Enzyme Enzymes are considered catalysts; substances that increase the rates of reactions. Enzymes are responsible for thousands of metabolic processes that involve the sustainment of life‚ one common one is simple food digestion. Without enzymes‚ digestion would occur too slowly for life to continue. Enzymes maintain a protein structure consisting of one or possibly more than one polypeptide chains of defined primary structure‚ and take up a characteristic
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Enzymes are responsible for many crucial processes in living cells since they accelerate chemical reactions which would occur too slowly‚ or would lead to different products without their contribution. Enzymes are biocatalysts that usually show high affinity to a specific substrate under particular environmental conditions. The binding of the substrate and catalysis take place at a specific small region‚ around 10 amino acids‚ in the enzyme known as active site which usually represents a hydrophobic
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Principles of Biology Lab Exercise Enzymes: Catalysts of Life Instructor: Professor Alcendor By Shahid Rana Date: March 7th‚ 2013 Abstract: In this experiment we have demonstrated the function of enzymes. The whole experiment was devoted to understand how enzymes work as a catalysts and increase the chemical reaction without being used themselves. In general‚ enzymes are proteins that function as biological catalysts. These enzymes adhere to lower to amount of energy required for
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