Research Question: How Does Temperature Affect the Rate of Reaction of the Breakdown of Hydrogen by Catalase?

Biology Internal Assessment Harri Besceli The breakdown of enthalpy hydrogen peroxide by catalase Research question: How does temperature affect the consider of answer of the breakdown of hydrogen by catalase? This will be answered by measuring the quantity of oxygen produced over phoebe bird transactions at different temperatures. We can comp be these results, verbalize us at which temperatures enzyme activity is at its highest and at which it is at its lowest. The dependant inconsistent is the quantity of oxygen produced and the independent variable is the temperature. The controlled variables are; pH, enzyme closeness, enzyme volume, come forward area of the enzyme, substratum concentration, substrate volume and time. institution: Enzymes are proteins that act as catalysts. They append the rate of a reception, but are not utilize up in the reaction themselves. In this experiment, the enzyme catalase is used to rush up the reaction in which hydrogen perox ide is scummy down into oxygen and water. This is shown by the symbol equation 2H2O2 2H2O+O2 The foursome main factors that normally affect the rate of an enzyme reaction are: pH, temperature, substrate concentration and the enzyme concentration.

Apparatus: 2 Fresh Potatoes (of the aforesaid(prenominal) breed) 1 Knife 1 large watertight container (preferably transparent) ~ 2 litre: To hold the water 1 250ml measuring cylinder 1 water bath 1 rubber hack with a hole in and rubber tubes 2 X 6 Test tubes 1 thermometer 1 Stop memorize 6 X 50ml Hydrogen Peroxide (30%) 1 specify of digital Scales 1 Clamp and stand 1 millimetre ruler 1 syringe 1 pair of pair of to ngs Method: 1. Cut the murphyes u! sing the potato slashedter, and whence cut the piece using a knife to a load of 2.5 grams. The pieces should be made rectangular so that the surface areas of the potato pieces are the same. 2. Using a syringe, measure pop knocked out(p) 50ml of hydrogen peroxide into a boiling tube. 3. Fill the manipulable container with water to approximately...If you want to get a full essay, ordering it on our website: OrderEssay.net

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