The purpose of conducting this experiment was to explore how different factors affect the reaction rate of enzymes reacting with their corresponding substrates in order to learn more about how enzymes function in different environments. The independent variables investigated in this experiment were the concentration of different substrates, the temperature of the environment, and the effect of a catalyst on the reaction rate. The dependent variable for all of the investigations was the time it took for the reaction to occur.
To investigate the effect of the concentration of the substrate on the reaction time, four test tubes were used. In each tube, a certain amount of a starch solution and a potassium persulfate solution was added, while …show more content…
In each tube, a certain amount of a starch solution and a potassium iodide solution was added. Then, each test tube was placed in three different baths, each with different temperatures: an ice water bath, a warm water bath, and a very warm water bath. After the solutions adjusted to the temperatures of the baths, they were taken out, and a certain amount of a potassium persulfate solution was added to each tube. After the potassium persulfate solution was added, the time it took for each reaction to occur was measured. For this experiment, the control variables were the amount of starch solution, the amount of potassium persulfate solution, the concentration of the substrate, and the absence of a …show more content…
Therefore, the activation energy of a reaction is the amount of energy that is needed to be added in order for the reaction to occur. A catalyst can help a reaction begin by lowering the activation energy needed to begin a reaction. Chemical reactions require the breaking and forming of chemical bonds for the reactants to turn into products. In order for a chemical reaction to occur, the reactants must absorb enough energy to contort into an unstable state. Once in this state, the reaction can occur, resulting in the products being made in a stable state and energy being released from the reaction as heat. An endothermic reaction is a chemical reaction that requires heat to be absorbed to occur, and an exothermic reaction is a chemical reaction that releases energy, typically as
To investigate the effect of the concentration of the substrate on the reaction time, four test tubes were used. In each tube, a certain amount of a starch solution and a potassium persulfate solution was added, while …show more content…
In each tube, a certain amount of a starch solution and a potassium iodide solution was added. Then, each test tube was placed in three different baths, each with different temperatures: an ice water bath, a warm water bath, and a very warm water bath. After the solutions adjusted to the temperatures of the baths, they were taken out, and a certain amount of a potassium persulfate solution was added to each tube. After the potassium persulfate solution was added, the time it took for each reaction to occur was measured. For this experiment, the control variables were the amount of starch solution, the amount of potassium persulfate solution, the concentration of the substrate, and the absence of a …show more content…
Therefore, the activation energy of a reaction is the amount of energy that is needed to be added in order for the reaction to occur. A catalyst can help a reaction begin by lowering the activation energy needed to begin a reaction. Chemical reactions require the breaking and forming of chemical bonds for the reactants to turn into products. In order for a chemical reaction to occur, the reactants must absorb enough energy to contort into an unstable state. Once in this state, the reaction can occur, resulting in the products being made in a stable state and energy being released from the reaction as heat. An endothermic reaction is a chemical reaction that requires heat to be absorbed to occur, and an exothermic reaction is a chemical reaction that releases energy, typically as