Question

1. if an enzyme is added to a chemical reaction, it will do what?

○ raise the activation energy so the reaction rate will decrease
○ raise the activation energy so the reaction rate will increase
○ lower the activation energy so the reaction rate will decrease
○ lower the activation energy so the reaction rate will increase

Explanation:

Enzymes are biological catalysts. Catalysts lower the activation energy (the energy required to start a reaction). When the activation energy is lower, more reactant molecules can reach the transition state (the state where the reaction can occur) with the available energy. This leads to an increase in the reaction rate.

Answer:

lower the activation energy so the reaction rate will increase