The Effects Of Temperature On Enzymes

733 words - 3 pages

The Effects of Temperature on Enzymes Reaction Rate.

INTRODUCTION
Enzymes are proteins that speed up many chemical reactions in cells. Enzymes affect the rate of almost all chemical reactions which take place in organisms. Like all other proteins, enzyme function may be affected by the change in any aspect of its structure. The effect of a change in enzyme structure is called denaturation; this means that the enzyme becomes inactive. The activity of enzymes is affected by temperature.
The purpose of this lab was to determine the effect of temperature on the rate of enzyme activity. Since the catalase speeds up the decomposition of hydrogen, the rate of catalase activity was ...view middle of the document...

The slope for each test tube at each time interval was then recorded.
RESULTS
By obtaining the maximum reaction rate for each test tube we were able to calculate the average maximum rate for each temperature. At 37 degrees Celsius the test tubes had an average reaction rate of 3.369 9(%/min), at 2 degree Celsius the test tubes had an average reaction rate of 1.3955 (%/min), at 25 degree Celsius the test tubes had an average reaction rate of 1.922 (%/min), at 50 degree Celsius the test tubes had an average reaction rate of 1.253(%/min) and at 90 degree Celsius the test tubes had an average reaction rate of 0.097 (%/min) (Fig. 2). The results shows that enzyme had an optimum temperature at 37 degrees Celsius
DISCUSSION
The results supported my hypothesis, that once the enzyme temperature decreases the rate of hydrogen peroxide decomposition decreases. If temperatures are too cold, the enzyme moves very slowly as it has less energy, and the chances of a successful collision between the enzyme and substrate are low, meaning the rate is much slower.
The results also supported my second hypothesis, as the enzyme temperature...

Other Papers Like The Effects of temperature on Enzymes

Investigating The Effect Of Temperature On The Structure Of An Enzyme

1659 words - 7 pages Investigating The Effect of Temperature on the Structure of an Enzyme Introduction: For my GCSE Biology assessment I will be investigating the enzyme amylase with the substrate starch. This reaction, which I am going to investigate, is called the protein test for starch. Aim: My intention for this observation is to examine how the enzyme catalyses are affected by changes in temperature. Safety

Investigating The Effect Of Temperature On The Movement Of Pigment Through Cell Membranes

1017 words - 5 pages Investigating the Effect of Temperature on the Movement of Pigment through Cell Membranes INTRODUCTION: The aim of experiment is to prove that temperature effects on a proteins in cell membranes so that pigment can pass through them HYPOTHESIS: On higher temperatures proteins in membranes denature so there is no barrier to prevent the passage of large molecules THEORETICAL BACKGROUND: Certain chemicals and treatments

The Effect of Time and Temperature on Storage of Fresh Pechay

1591 words - 7 pages The Effect of Time and Temperature on Storage of Fresh Pechay I.Introduction A. Objectives The study is performed to discuss the effect of time and temperature on the storage of fresh pechay. It is also done to explain the difference of low and high temperature on the storage fresh pechay. Lastly, to explain other factors related to time and temperature that may affect the storage. Through conducting this study, the proper storage

Effect of Water Temperature on Amylase Using Colorimetric Starch Assay

1540 words - 7 pages Timothy Pratt Wednesday, 12:20 PBIO 1210L Scientific Paper: Effect of Water Temperature on Amylase Using Colorimetric Starch Assay Introduction For plants to function properly, chemical reactions must take place within the cells of each individual plant. Energy is necessary for each reaction to occur. The amount of energy that is necessary for a reaction is called the activation energy. Enzymes are used to reach the correct activation

The Effects of Consumerism on the Environment

578 words - 3 pages processes can have on the ecology has to be reduced. To save the environment humanity can no longer continue to increase its consumption of goods and, this should therefore not be encouraged. The human race needs to envisage a future whereby people still have their comforts but without the throw-away and polluting aspects of living, as is happening in most modern-day societies. It is important that the planet’s worsening environmental

The Effects of Mood on Weather

2408 words - 10 pages & A. Magnusson 17). This deficiency of sunlight causes a drop in serotonin levels, which has a considerable influence on mood. A more common example of this “syndrome” is the widespread phenomenon characterized as the rainy-day blues. Why is it that the rain generally puts us down? Besides the fact that it forces everyone to stay indoors, rainy weather effects mood psychologically as well as biologically. In addition to a decline in serotonin

The Effects Of Divorce On Children

1231 words - 5 pages The Effects of Divorce on Children ENG215 Research and Writing The Effects of Divorce on Children These days most people accept divorce as a way of life, completely unaware of the damage they are doing to their children. Half of all American children will witness the breakup of a parent’s marriage. Of all children born to married parents, fifty percent of those will experience the divorce of their parents before they graduate from

The Effects of Methamphetamine on Development

2454 words - 10 pages The Effects of Methamphetamine on Development Anna Lenaya Robb Western Oregon University Methamphetamine use has been increasing significantly in the United States as well as other countries around the world. Although there are various forms, processes used to make it, and different names for it, the popularity of stimulant abuse is on a steady incline. Most individuals who try methamphetamine may not think about

The Effects of Cancer Treatment on Children

1604 words - 7 pages Cancer Society states (2014), “survivors may have a harder time recovering, adjusting to life after cancer, and moving on. It’s normal to have some anxiety or other emotional reactions after treatment, but feeling overly worried, depressed, or angry can affect many aspects of a young person’s growth.” Hair loss is one of the most noticeable side effects of treatment. Hair loss can be very embarrassing for children, especially teens, because

Examining the Effects of Music on Memory

2325 words - 10 pages Examining the Effects of Music on Memory <Name Removed> University of Mary Hardin-Baylor Abstract This experiment was designed to test the effects that classical music has on memory. Previous experiments have shown that the effects of music can be beneficial in work and school environments. Our hypothesis was that a group that is required to listen to classical music during a study would outperform a group who studied in silence

Effects of Shift Work on the Paramedic

1281 words - 6 pages Effects Of Shift Work On The Paramedic Shift work allows for continuous services to be available on a 24-hour basis. This type of “irregular” work schedule is particularly prevalent in the healthcare industry. Among these workers are Paramedics whom form a unique part of the emergency services. As pre-hospital providers they are constantly faced with heavy workloads that are not only physically, but also mentally and emotionally taxing

Related Essays

Temperature: Effects On Growth Essay

688 words - 3 pages , p 181) The microorganisms will grow in one of the four groups; they will not continue to develop into the other groups (Brown, 2007, p 181). Brown states that during this experiment we will attempt to measure the effects of various temperatures on pigment production and growth rate 2007, p 181). With this test there are three cellular components that are involved in metabolism that are influenced by temperature, they are cell membrane

Effects Of Temperature Essay

2008 words - 9 pages The Effects of Temperature, pH, Enzyme Concentration , and Substrate Concentration on Catecholase Introduction Enzymes are biological proteins that speed up the reaction rate of a chemical reaction. They work in the human body by lowering activation energy making certain that reactions will initiate. For every action, there is an equal and opposite reaction. In this case, factors that influence the activity of an enzyme are called modulators

Effect Of Enzymes On Starch Essay

2133 words - 9 pages cannot be stressed with too much environmental changes. Minimal alteration of the pH and temperature may drastically affect enzyme activity as they are quite sensitive. The pros of enzymes are that they are reusable and reversible in reactions, this is very convenient however enzyme denaturing can become a huge negative impact on the human body. Conclusion The aim is to investigate the affects of different

Effect Of Temperature On Raction Rate

684 words - 3 pages Effect of temperature on RXN rate Factors affecting rate of reaction: Surface area – as we increase surface area, we increase the reaction rate. The more the collisions the faster the reaction. Concentration – as we increase concentration we increase the reaction rate. In reaction with between gases, increasing the pressure, increase the reaction rate. Temperature –     as we increase the temperature, we increase