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Free research papers and essays on topics related to: catalase

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  • Enzyme Catalase - 1,454 words
    Enzyme Catalase INTRODUCTION The enzyme catalase speeds up the decomposition of Hydrogen Peroxide into water and oxygen as shown here, 2H2O2-------------------*2H2O+O2. It is one of the fastest known enzymes and its turnover number is 6 million, which means the number of substrate molecules which one molecule of the enzyme turns to products per minute. This can be demonstrated by putting a piece of liver into a beaker of Hydrogen Peroxide, the fizzing shows a demonstration of the enzyme in action. AIM My aim is to examine how the concentration of the substrate hydrogen peroxide affects the enzyme catalase. INVESTIGATION I am going to investigate the effect of varying the substrate concentrat ...
    Related: catalase, enzyme, kinetic energy, decreasing, investigation
  • Enzyme Catalase - 1,412 words
    ... ays used 20ml) every time I increased the concentration by 10% I increased the H2O2 by 2ml and decreased the H2O by 2ml. A problem did occur at one point when I was doing my experiment for TRIAL 1 for the substrate concentration of 30%, it took a long time, much longer to get to 20ml of gas produced its time was no where near the previous concentration it had no pattern, so I stopped it and I repeated it again then it was alright it took normal time it was in pattern with the other concentrations. Probably the reason for the reaction at that particular concentration to take that long when I did it first might have been that the enzyme must of deteriated fast or when I put the enzyme in t ...
    Related: catalase, enzyme, kinetic energy, fatty acids, sample
  • Hypothesis Enzymes - 1,392 words
    Hypothesis Enzymes Hypothesis Enzymes such as Catalase are large protein molecules that are found in living cells. They are used to speed up specific reactions in the cells. They are all specific as each enzyme just performs one particular reaction. In their globular structure, one or more polypeptide chains twist and fold, bringing together a small number of amino acids to form the active site, or the location on the enzyme where the substrate binds and the reaction takes place. Enzyme and substrate fail to join together if their shapes do not match exactly. This ensures that the enzyme does not participate in the wrong reaction. The enzyme itself is unaffected by the reaction. When the pro ...
    Related: hypothesis, surface area, amino acids, removing, experiment
  • Hypothesis Enzymes - 1,134 words
    ... to produce more accurate results as any inaccuracies in one experiment can be compensated for in the other experiments.  The 0% concentration of hydrogen peroxide is used as a control to show that at 0% concentration no reaction occurs. Safety To be protected safety goggles must be worn at all times during the experiment. A lab coat should be worn to protect from damage to clothing. Cleaning apparatus must be kept near by in case of any spillage. Hydrogen peroxide is toxic and care must be taken when using it because it will blister the skin easily. Results 100% concentration Time (s) Experiment 1 Experiment 2 Experiment 3 Average Rate of reaction 30 35 22 24 27.00 0.90 60 49 44 ...
    Related: hypothesis, went wrong, fairly, catalase
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