CELL STRUCTURES AND FUNCTION
BIO MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The reaction rate will increase.
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The equilibrium of the reaction will be maintained.
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The reaction rate will decrease.
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The reaction will stop.
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Detailed explanation-1: -First, they increase the rate of chemical reactions without themselves being consumed or permanently altered by the reaction. Second, they increase reaction rates without altering the chemical equilibrium between reactants and products.
Detailed explanation-2: -Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Detailed explanation-3: -If there is insufficient enzyme present, the reaction will not proceed as fast as it otherwise would because all of the active sites are occupied with the reaction. Additional active sites could speed up the reaction. As the amount of enzyme is increased, the rate of reaction increases.
Detailed explanation-4: -If a chemical reaction is catalyzed by an enzyme, then the reactants will be able to initiate a chemical reaction with slightly more activation energy and the reaction would be classified as an endergonic process if the products have less energy than the reactants.
Detailed explanation-5: -Like most chemical reactions, the rate of an enzyme-catalyzed reaction increases as the temperature is raised. A ten degree Centigrade rise in temperature will increase the activity of most enzymes by 50 to 100%.