Question

1. the graph shows a reaction that occurs with and without an enzyme to convert reactants into products. which statement explains a difference between a reaction with an enzyme and a reaction without an enzyme? a the amount of products is more in the reaction with an enzyme. b the activation energy is lowered in the reaction with an enzyme. c the rate of reaction is faster in the reaction without an enzyme. d the overall energy released is less in the reaction without an enzyme.

Explanation:

Enzymes are biological catalysts. Catalysts lower the activation - energy required for a reaction to occur. The graph shows that the peak energy (activation energy) is lower when the enzyme is present. The amount of products is determined by factors like reactant amounts and reaction equilibrium, not just the presence of an enzyme. The rate of reaction is faster with an enzyme as it lowers activation energy. The overall energy released is a property of the reactants and products and is the same with or without an enzyme.

Answer:

B. The activation energy is lowered in the reaction with an enzyme.