Preview

Experiment to Show the Effect of Temperatutre on Enzyme Activity

Good Essays
Open Document
Open Document
615 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Experiment to Show the Effect of Temperatutre on Enzyme Activity
EXPERIMENT TO SHOW THE EFFECT OF TEMPERATURE ON ENZYME ACTIVITY

Table of raw data of experiment to show effect of temperature on enzyme activity Temperature (ᵒc) (+/-0.05) | Time taken for pink solution to turn back to white (s) (+/- 0.05) | | Repeat1 | Repeat2 | Repeat3 | Repeat4 | Repeat5 | 21 (Room Temperature) | 414.0 | 286.0 | 286.0 | 297.0 | 294.0 | 40 | 122.0 | 88.0 | 125.0 | 86.0 | 92.0 | 60 | 176.0 | 162.0 | 161.0 | 166.0 | 180.0 | 80 | 356.0 | 367.0 | 396.0 | 85.0 | 438.0 | 100 | Greater than 10 | Greater than 10 | Greater than 10 | Greater than 10 | Greater than 10 |
During the experiment I noticed that at room temperature the solution turned from pink to white quite slow but then as the temperature increased it turned faster. The time taken for the solution gradually decreased, at one point it started increasing, then eventually the solution did not turn white at all at 100ᵒC.
During the experiment I noticed that at room temperature the solution turned from pink to white quite slow but then as the temperature increased it turned faster. The time taken for the solution gradually decreased, at one point it started increasing, then eventually the solution did not turn white at all at 100ᵒC.

Table of processed data of experiment to show the effect of temperature on enzyme activity

Graph of average time taken(s) against temperature(ᵒC)

Conclusion of experiment to show the effect of temperature on enzyme activity Temperature has an effect on enzyme activity. As temperature increases, enzyme activity increases making it work faster. The enzyme activity increases till an optimum temperature is reached, from then the activity of the enzyme decreases as further increase in temperature starts to denature the enzyme. Enzyme activity will eventually stop when it gets completely denatured. This is evident in this experiment, at room temperature (21ᵒC) the enzyme was able to break down the fat in the milk (turning the solution

You May Also Find These Documents Helpful

  • Satisfactory Essays

    The purpose of this experiment was to observe the color change and the concentration to determine the…

    • 1426 Words
    • 6 Pages
    Satisfactory Essays
  • Good Essays

    The prediction for the effects of temperature on the enzyme activity was that the reaction’s rate would increase as the temperature increased, until they go over the optimum temperature where the enzymes denature and the reaction’s rate quickly drops to zero. At 5 degree C the rate is 0.00059mole PNP/min. This then increases to 0.01031mmoles PNP/min at a temperature of 50 degree C. The rate then drops drastically to -0.00215moles PNP/min. This point is where the enzymes have been denatured and have no activity, shown as the last point on the fig 8 and 9, do not fit on the graph. The optimum temperature was about 47 degree C. The core body temperature is only about 37 degree C and thus these enzymes are operating below their optimum temperature.…

    • 521 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Biology Eei Enzymes

    • 6364 Words
    • 26 Pages

    The aim of this EEI was to test the effects of temperature on the activity of the enzyme Amylase. Solutions of starch and amylase were held at selected temperatures by various methods of temperature control. Once the solutions reached and maintained the desired temperature they were combined. Samples at timed intervals were then taken and reacted with a reagent to determine the effect the selected temperatures had on the reaction rate of enzyme and substrate. Results indicated that the enzyme functions efficiently at its optimum temperature (50oC) digesting the starch present and that any sign of enzyme function at 70oC is completely nonexistent. In summary the experiments conducted in the EEI succeeded in demonstrating the effects temperature has enzyme activity and just how vital enzymes are for biological life.…

    • 6364 Words
    • 26 Pages
    Good Essays
  • Good Essays

    It is my understanding that at low substrate concentration there are many enzymes that are not producing anything because they have no substrate molecules to work with. At low concentration all substrate molecules are absorbed immediately by waiting enzymes on a first come first serve basis.…

    • 396 Words
    • 2 Pages
    Good Essays
  • Good Essays

    As the temperature increased, the enzyme activity also increased, however, only to an optimal level which was at temperature 32oC. Once the temperature was beyond the optimal level, the rate began to decline and this was represented by the concave curve on figure 5 and 7. This was because as the temperature increases, the frequency of collisions between the enzyme and the substrate also increased hence faster reaction rate. Whereas, the enzymes operated slowly at low temperature as there wasn’t sufficient energy for the substrates to move at a fast rate, hence decreased the number of collisions with the enzymes. However, when the temperature was beyond the optimum range, the enzymes became denatured and inactive due to excessive heat and resulted…

    • 1047 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Iodine Clock Reaction

    • 5803 Words
    • 24 Pages

    For this aim 3 sets of results will be obtained by timing how long it takes for the colour change to occur in different temperatures determined by the use of an electric water bath. With these results, the effect of temperature on the rate of reaction will be investigated.…

    • 5803 Words
    • 24 Pages
    Good Essays
  • Best Essays

    Enzymes are designed to operate best at specific PH levels and also specific temperatures. They also work best at higher temperatures, so as temperature increases, so does the rate of chemical reaction. This is because heat energy and more kinetic energy results in more collisions between the enzyme molecules and the substrate molecules, therefore the substrate is more likely to enter the enzymes active site. For human enzymes the optimum temperature for enzymes to work is usually close to body temperature, therefore the enzyme trypsin is likely to have an optimum temperature of around 40ºC. Below this temperature, the enzyme and substrate have less kinetic energy, are moving more slowly and therefore are less likely to collide. Because of this, it was expected that the rate of reaction would be less at temperatures lower than body temperature. Also if the temperature gets too high and exceeds 40°C the rate of reaction should begin to decrease.…

    • 1597 Words
    • 7 Pages
    Best Essays
  • Good Essays

    As I cannot explain them all, I have chosen to explain the effect of temperature and also the effect of inhibitors on enzyme activity.…

    • 733 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The purpose of this review paper is to discuss the effect of temperature on enzyme- catalyzed reactions. This is relevant because many diseases can be diagnosed and controlled by the processes of enzyme activity (Worthington 2015). If more information is not found about enzyme activity and how it is affected, many diseases may go undiagnosed and uncontrolled.…

    • 1009 Words
    • 5 Pages
    Good Essays
  • Better Essays

    An enzyme is a biological catalyst that speeds up the rate of reaction in certain biological functions. They play a vital role in many aspects of human physiology and are necessary for the functioning of a number of systems, for example in the digestive system to help to break down food. All enzymes have a unique active site that can fit on to a particular molecular arrangement on a target substrate; a substance e.g. carbohydrate, protein, or fat, that the enzyme is designed to breakdown. There are a number of different enzymes in the human body; each type produced specifically to perform a certain role. Enzymes are not themselves destroyed in the reaction to break down a substrate but their effectiveness is reduced under certain adverse environmental conditions. The two most important ones are temperature and PH level; also concentration of enzyme is also a determining factor. Enzyme action is biochemical in nature and, in line with many chemical reactions; it speeds up with an increase in temperature. This would continue until a certain critical temperature is reached where it’s working efficiency drops suddenly. This is due to a deforming or ‘de-naturing’ of the active site leaving the enzyme unable to bond with its substrate. In humans this can have life threatening consequences if the body temperature rises above 40 degrees Celsius. As enzymes normally function in their own particular part of the anatomy, they operate most efficiently in a medium with a specific acid/alkali (PH) balance. If this balance is either too high or too low it’s functioning is reduced and in extreme circumstances this can lead to de-naturing also.…

    • 1249 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    Prediction:-I think the one that will work best will be the rennin placed in milk at 37oC…

    • 543 Words
    • 3 Pages
    Satisfactory Essays
  • Powerful Essays

    The glass transition temperature of polymethylmethacrylate ( PMMA, Perspex) is measured using static and dynamic method while the glass transition temperature of rubber of different size is measured using only dynamic method. The glass transition temperature Tg of Perspex is found to be 90°C using the static method and 160°c using the dynamic method. On the other hand, the Tg of rubber is found to be -30°C.…

    • 1169 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Almost all chemical reactions that occur in living organisms are catalyzed by enzymes. Many factors in a cell’s environment affect the action of an enzyme. In this investigation, you will design an experiment to determine the effect of temperature on an enzyme-catalyzed reaction. You will complete an entire lab write-up using the CHS LAB REPORT FORMAT.…

    • 1031 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Wheatstone Bridge Report

    • 436 Words
    • 2 Pages

    I tabulated the data from sections V-1, V-2 and V-3. Using the equation σRx=Rx(1L1+L2L12)σL I determined σRx. These are values for DC power. R3=300Ω…

    • 436 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Temperature effects enzyme activity. Increasing the heat gives molecules more kinetic energy so they move around faster. This means…

    • 1099 Words
    • 5 Pages
    Good Essays