Enzymes Investigation Essays

  • Investigation on the Enzyme Trypsin

    2374 Words  | 5 Pages

    Investigation on the Enzyme Trypsin An Investigation determining a factor affecting the rate of digestion of gelatin by the protease trypsin. Introduction An enzyme is a biological catalyst, which speeds up reactions. An example of this in the human body is trypsin (a protease produced in the pancreas and used in the stomach), which catalyses the digestion of gelatine, a protein. For this investigation, a photographic film will be the source of the gelatine. I will be able to identify

  • Enzyme Experiment: An Investigation Of The Succinate Dehydrogenase

    1106 Words  | 3 Pages

    An investigation of the enzyme succinate dehydrogenase. Introduction Enzymes are a catalysts that speed up a chemical reaction inside of a cell without being consumed or changed by the reaction. (Wright, W. 2015) Enzymes catalyse reactions by lowering the activation energy that is required for the reaction to occur. (Nature, 2012) In this experiment we will be using Succinate dehydrogenase which is an enzyme that has been extracted from chicken hearts, succinate dehydrogenase is an enzyme of the

  • Investigation of Whether Temperature Affects Enzyme Activity

    832 Words  | 2 Pages

    Assessment for DCP and CE Determining if temperature affects enzyme activity This investigation is using a range of temperature in order to find weather or not Temperature affects enzyme activity. I will: 1. Observe the effects of different temperatures on enzyme activity 2. Infer the relationship between the two 3. Use a line graph to display data and draw a conclusion Research Question How does temperature affect enzymes activity? Variables Independent Variable: Temperature

  • Investigation of How the Concentration of Catalase Enzyme Affects the Rate of Reaction

    1136 Words  | 3 Pages

    Investigation of How the Concentration of Catalase Enzyme Affects the Rate of Reaction Aim: To find out how the concentration of Catalase Enzyme will affect the enzyme activity and the rate of reaction towards Hydrogen Peroxide. (H O ) Prediction: I predict that with the higher concentration of enzyme, the likelihood of it breaking down molecules will be greater because there will be more enzymes to work at the substrate and the chances of it colliding will be higher making the activity

  • The Effect of the Concentration Amylase on the Rate of Breakdown of Starch

    1730 Words  | 4 Pages

    Breakdown of Starch Investigation: To find the effect of the concentration amylase on the rate of breakdown of starch. Prediction The lower the concentration of amylase, the slower the breakdown of starch will be. If you double the amount of amylase, the breakdown of starch will be quicker because there are twice as many active sites. I expect to see a graph like: [IMAGE] Rate of Breakdown [IMAGE] Concentration of amylase Research Enzymes are made of long protein

  • Rate of Reaction Using Enzymes

    2254 Words  | 5 Pages

    Rate of Reaction Using Enzymes In this bit of coursework I will be investigating the rate of reaction in which enzymes are the catalyst breaking down a substrate. The substrate I am going to use is Hydrogen Peroxide (H2O2, water with another Oxygen), this molecule usually breaks down on its own accord, but also the rate of decomposition can be increased with the use of a catalyst; in this case the catalyst is a biological one called an enzyme. Hydrogen Peroxide slowly breaks down on its

  • How Amylase Concentration Affects the Rate of the Starch Concentration

    1207 Words  | 3 Pages

    Affects the Rate of the Starch Concentration In this piece of coursework, I have to carry out an investigation to find out how amylase concentration affects the rate of starch. Enzymes are biological catalysts that speed up the chemical reaction that goes on inside living things. An enzyme acts on substrate and may do its job inside or outside the cells. However, the rate at which enzymes work are affected by the following factors/variables: Concentration: In a more concentrated solution

  • The Effect of Temperature on an Enzyme's Ability to Break Down Fat

    1097 Words  | 3 Pages

    to break down fat. Hypothesis: The graph below shows the rate increasing as the enzymes get closer to their optimum temperature (around 35 degrees Celsius) from room temperature. The enzyme particles are moving quicker because the temperature increases so more collisions and reactions occur between the enzymes and the substrate molecules. After this the graph shows the rate decreasing as the enzymes are past their optimum temperature (higher than). They are getting exposed to temperatures

  • Cellulase Essay

    739 Words  | 2 Pages

    either as single polypeptide or can be grouped together into multienzyme complex known as cellulosome. Cellulase system is composed of three main classes based on their activity toward a wide range of substrates. This is rather difficult, since the enzymes have overlapping specificities toward substrates which themselves are poorly defined. The three main classes are: a) Endoglucanases (endo-1, 4- β- glucanases or 1, 4- β-D-glucan 4-glucanohydrolases EC hydrolyze cellulose chains at random

  • Factors that Affect the Rate of Respiration in Yeast

    1643 Words  | 4 Pages

    Factors that Affect the Rate of Respiration in Yeast Introduction ============ Yeast is one of the living cells, which can respire aerobically, and anaerobically in this investigation I am just taking into consideration respiration as whole. The equation of respiration in yeast is: Equation: There are different variables in this experiment. These consist of the range in temperature, concentration of glucose, amount of hydrogen carbonate solution used and amount of water used

  • The Effects of Temperature on the Action of Enzymes

    1222 Words  | 3 Pages

    The Effects of Temperature on the Action of Enzymes Aim: To see how changing the temperature affects the action of the enzyme. ------------------------------------------------------------------ MY HYPOTHESIS: I think that as the temperature increase the quicker the reaction will become ------------------------------------------------------------------- Outline of method You add ice to 150cm³ of cold water in a beaker to bring its temperature down to 10cº. Then a fixed volume of

  • Yeast Enzyme Lab Report

    1571 Words  | 4 Pages

    Aim: To investigate the effect of pH of hydrogen peroxide solution on enzyme activity of the catalase enzyme (yeast) and the O2 froth produced (ml) after 1 minute. Hypothesis: That an increase of hydrochloric acid to a solution where yeast cells are exposed will increase the rate amount of enzyme catalase (O2 froth) produced, as from my research it has been proven that with some enzymes the optimum pH is around 2 (stomach enzymes). Variables: Independent Variable: pH The independent variable being

  • The Effect of Temperature on Anaerobic Respiration of Yeast

    1044 Words  | 3 Pages

    increase, but will then stop rising. When yeast respires anaerobically, bu... ... middle of paper ... ...d. I hav creatd another experiment which investigates the best temperatures at which yeast enzymes work best at. I want to investigate further into what exactly is the yeast enzymes' optimum temperature, as it was 101cm3 at 50C, but as I mentioned before - the dough was at unevern temperatures, as it was hard to control it without the special abilities of laboratory machines. I know

  • The Effect Of Enzyme Experiment On Catalase Concentration

    1613 Words  | 4 Pages

    concentration, the oxygen production would rise gradually. It was suggested that this would occur due to the collision theory ("BBC - GCSE Bitesize: Collision Theory") and the greater number of active sites thus an increase in accessibility allowing enzyme- substrate complex’s to be formed. According to the data gathered from the experiment, it can be implied that the hypothesis was supported as the data indicates an incline in oxygen

  • The Effect of Temperature on the Rate of Respiration in Yeast

    1232 Words  | 3 Pages

    The first thing to say about enzymes is that they are proteins and they are found in all types of organisms from humans to viruses. They function in the body as catalysts. In other words they speed up the rate of chemical reactions in the body. Enzymes actually accelerate chemical reactions by a factor of about 1 million. Enzymes are organic catalysts. Without enzymes the metabolism of an organism would be too slow for the organism to survive. The word enzyme actually means "in yeast" as

  • Investigation to Determine the Relationship Between Surface Area and Rate of Oxygen Production

    1405 Words  | 3 Pages

    Investigation to Determine the Relationship Between Surface Area and Rate of Oxygen Production To determine the relationship between surface area and rate of oxygen production when a potato is placed in hydrogen peroxide (H2O2) solution. Background Information ---------------------- Potato contains enzymes such as catalase. Catalase are protein molecules, which are found in animal and plant cells. Catalase speeds up specific reactions in the cells. They all have very specific duty

  • What is Muscle Differentiation?

    1803 Words  | 4 Pages

    to investigate the possible effects in reverse contractile characteristics[1]. It has been documented that chronic electrical stimulation, muscle ablation, hindlimb suspension and hormone manipulation have been used to cause changes in metabolic enzymes, Ca2+ handling proteins , myosin isoforms and regulatory proteins of skeletal muscle and muscle fiber type and size. John Holloszy’s classic paper (1967) provides evidence on the malleability of rat muscles and the adaptation of their energy metabolism

  • Investigating the Amount of Oxygen Given Off When Catalase Reacts with Hydrogen Peroxide

    1230 Words  | 3 Pages

    this investigation is to measure the amount of oxygen given off when we react catalase (enzyme) with hydrogen peroxide (substrate), this means that I aim to investigate the effect of hydrogen on the activity of catalase. Background Information Enzymes such as Catalase are protein molecules that are found in living cells. They are used to speed up specific reaction in the cell. The enzymes are all very specific as each enzyme performs one particular reaction. Catalase is an enzyme found

  • Effect Of Concentration On The Concentration Of Pectinase

    1972 Words  | 4 Pages

    Any difference that is observed is entirely due to chance and not because of the independent variable. Alternate Hypothesis: Increasing concentration of the enzyme, pectinase, will increase the volume of juice produced and the clarity. The reason behind this hypothesis is the fact that at a higher concentration of pectinase, more enzyme molecules are present to break down the pectin in the cell wall of the apple and since pectins have a high affinity towards water and form hydrophilic groups, a

  • Catalase Lab

    1647 Words  | 4 Pages

    In which pH will the enzyme catalase in the potato sample catalyze hydrogen peroxide most effectively? 2. Will the amount of hydrogen peroxide in relation to the amount of potato sample affect my results? 3. Will crushing the potato sample lead to different results, than if a whole potato is used? 4. What is the optimum pH for the enzyme catalase? 5. Will the enzyme catalase actually catalyze hydrogen peroxide in an alkaline medium? 6. Hypothesis I predict that the enzyme activity of catalase on