Essay On Effect Of Temperature On Enzyme Activity

Improved Essays
Abstract The purpose of this investigation is to determine whether the temperature can affect the reaction rate of enzyme activity. The enzyme activity was measured by five different temperatures, separated in tubes which later got measured by their height of foam after 10 minutes. Freshly-prepared potato juice was used as the enzyme for catalase. Since temperature is measured by the kinetic energy of molecules, the higher the temperature, the more movement of molecules. The lowest temperature makes it more likely the molecules will not come in contact with each other.
Introduction
The effect of temperature on enzyme activity was presented by enzyme catalase, found in membrane-bound vesicles called peroxides. Research findings suggest that
…show more content…
Each test tube had a mark indicating 1 cm and 3 cm. Add potato juice up to the 1cm on every tube. Tube 1 was located in an ice-water bath to a 250mL beaker. Tube 2 was just placed on a test tube rack on your lab bench for room temperature. Test tube 3 was placed in a bath at 50®C. Tube 4 was placed in a water bath at 70®C. Tube 5 was placed inside of a beaker with boiling water on a hot plate; while wearing your goggles. The test tubes where left for 10 minutes unbothered. The thermometer was brought out to measure the temperatures of the room, ice, and boiling water. After 10 more minutes all tubes where collected and hydrogen peroxide got added to the 3cm line. Gently shaking each tube to mix the ingredients together. After 30 seconds or until each tube stops foaming use a ruler and measure the amount of foam produced in each tube. The foam is produced when catalase is in contact with hydrogen peroxide. Tube 1 with Temperature 2®C was measured at the highest foam height of 30mm. Tube 2 with the temperature at 23®C measured 23mm in foam height. Tube 3 with the temperature of 50®C foam height reached 2mm. But for tube 4 which was temperature 70®C and tube 5 that was temperature 100®C foam height ended up as 0mm, because if above 40®C most enzymes activities in living tissue become denatured meaning their secondary or tertiary protein structure breaks …show more content…
Again, there was not a difference in tubes four and five in foam height. My conclusion is that when you have hydrogen periodic and potato juice the lower the temperature, the higher the catalase reaction will be. Because test tube two was not far behind test tube one when it came to foam height, this study raises the question of whether there might be an optimum temperature in enzyme activity. On the basis of the results of this study, the hypothesis presented can be taken in to account, and be accepted. Additional experimentation with different temperatures is suggested. Also, the requirement of enzyme activity on temperature has been labeled with two consisting processes: the catalytic reaction and the irreversible inactivation ( Biochem

Related Documents

  • Improved Essays

    Camphene Synthesis

    • 1013 Words
    • 5 Pages

    A stir bar was added into the flask containing isoborneol, and the flask was attached to a ring stand to rest on top of a magnetic stirrer device. In consistent drops, 0.63 mL of glacial acetic was added and the reaction had a pH of 2, which was measured with pH indicator paper. Then, 0.50 mL of 10% w/v sodium hypochlorite (NaOCl) solution was added, and the reagents were reacted for three minutes. Shortly after, 5.13 mL of 10% w/v NaOCl was added incrementally with a Pasteur pipet for about ten minutes. A thermocouple was periodically placed on the outside of the flask to make sure that the mixture did not reach past 50 °C.…

    • 1013 Words
    • 5 Pages
    Improved Essays
  • Decent Essays

    If the solid doesn’t dissolve within 10 minutes. Add another 0.5 g of sodium nitrite. Leave the solution in the ice bath. Part III: Sandmeyer Reaction: Formation of 4-Chlorotoluene Pour the diazonium ion solution (Part 2) into the copper(I) chloride solution (Part 1) and shake the mixture for 5 minutes. Set the system up for a simple distillation.…

    • 2234 Words
    • 9 Pages
    Decent Essays
  • Improved Essays

    Chitocan Case Study

    • 1522 Words
    • 7 Pages

    The amount of peroxide was calculated, using the following equation (Harold, Kirk, and Swayer 1981). PV = (1000 (푉1-푉2) 푁) / V1 V1: volume of sodium thiosulfate solution, V2 volume of sodium thiosulfate, W: weight, N: normality of sodium thiosulfate solution TBA Measurement 0.2 g of fat was mixed with 1 mL of BHT and 35 mL of C2HCl3O2. Then 100 mL of distilled water was added, 50 mL of distilled samples was collected to mix with 5 mL of TBA, and was placed for 1 hour in the water bath. The absorbance of the samples was measured at 532 nm, using a spectrophotometer (Pikul, Leszczynski, and Kummerow 1989). TBA value = (Asample−Ablank)×50/200 PH…

    • 1522 Words
    • 7 Pages
    Improved Essays
  • Improved Essays

    Gel Solution Lab Report

    • 844 Words
    • 4 Pages

    To make the desired buffer, another 100 ml beaker was used to prepare a solution buffer of 50 ml. Following the prelab calculations once again and using the weighting balance, the amount of Tris and SDS needed was weighted. The Tris used were 3.206g and SDS 0.205g. The solids were added to the beaker and to this 50 ml of water. The beaker was stir on the stirring plate until the solution dissolved completely.…

    • 844 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    After about 5 minutes, turn off the aspirator system until acid fumes can be formed only in the top Exhaust system. Continue the digestion process until the formation of green clear sample in tube. Upon completion of the digestive process, move the rack from tubes to refrigerate the tube vertically for 10 to 20 minutes. After that, add 75 mL of distilled water carefully into the tube which has been cooled followed by the 50 mL of 40% sodium hydroxide, NaOH. In order to prepare the distillate samples, 25 mL of 4% boric acid with 10 drops Bromocresol green indicator are added to recipient solution in a 250 mL conical flask and subsequently placed into the Kjeltec 2100 Distillation unit (Gerhardt, Germany).…

    • 1632 Words
    • 7 Pages
    Improved Essays
  • Superior Essays

    A series of standard solutions of concentrations in the range of 3-60µg/mL were obtained by further dilution of the aliquots with methanol. All the solutions were stored at -20oC and were equilibrated to room temperature prior to use. To prepare the standard calibration samples, 50µL of standard solution and 100µL of Acetonitrile were added to 100µL of blank plasma. The mixture was vortex-mixed for 10 min, followed by centrifugation at 4000 rpm for 15 min. 20µLof the supernatant was taken, then filtered through 0.22µm size syringe filter, and injected in HPLC for analysis.…

    • 777 Words
    • 4 Pages
    Superior Essays
  • Improved Essays

    Potato Enzyme Lab Report

    • 1024 Words
    • 5 Pages

    Along with the fourth location being the test tube rack at room temperature, roughly 25˚C. The pieces of potatoes were then submerged in test tubes filled with H20 by each individual, at the same time. Each test tubes was then placed into the different temperatures. Test tube A was placed in 4˚C, tube B in 25˚C, tube C at 40˚C, and tube D in 80˚C. A stop watch was set for 15 minutes, so that temperature could be measured with a thermometer at each location.…

    • 1024 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    TiV photocatalyst was prepared by sol–gel method using tetra-n-butyl titanate as the precursor. Solution A was prepared by dissolving 17 mL TBT in 30 mL anhydrous ethanol with stirring (300 rpm) for 30 min. The other solution that contained 28.35 mL anhydrous ethanol, 7.25 mL deionized water and 20 mL 3 M acetic acid was slowly added into the above solution with magnetic stirring at room temperature. The prepared mixture was further hydrolyzed for 60 min with stirring until the transparent sol was obtained, which was aged for 20 h at room temperature. Thus prepared TiO2 was dried at 80 °C in an oven for 12 h and calcined for 3 h at three different temperatures: 400 °C, 500 °C, 600 °C.…

    • 1084 Words
    • 5 Pages
    Improved Essays
  • Superior Essays

    Soap Bar Lab Report

    • 1590 Words
    • 7 Pages

    The blended oil needs to be melted in a water bath at 70-80 ˚C until homogeneous and mixed for 10 minutes. Then, half of NaOH, NaCl and EDTA solutions were added slowly into the mixer and the reaction needs to take place for 20 minutes. After that, the remaining solutions were added and continue to be mixed until it became semi-solid. The material was then being cut into pieces, covered with tissue and stamped with a stamper to produce the shape. The analysis of pH value, Saponification value and the moisture content has been conducted and recorded.…

    • 1590 Words
    • 7 Pages
    Superior Essays
  • Improved Essays

    The solution was heated to 30-35 °C by stirring at a brisk pace until all the material was dissolved. Also, 3.75 g of ammonium chloride was added to this mixture. Immediately after, the formation of a yellow precipitate (Ammonium Azo-Tetrazolate) was observed. The suspension was left in the refrigerator to cool till the temperature was less than 5 °C. The solid was washed in water, filtered and dried.…

    • 1161 Words
    • 5 Pages
    Improved Essays