1. Mark the point on the Y axis that indicates the free energy of the reactants. Mark the point on the Y axis that indicates the free energy of the products.

2. What letter represents the activation energy of the reaction in the presence of enzyme?

3. What letter represents the activation energy of the reaction with no enzyme?

4. Is the reaction exergonic or endergonic? (remember exer-means energy is released, exits, and endo-means energy remains IN the product, its stored in there)

5. Use the started graph below to Draw a chemical reaction curve of the opposite process (draw an exergonic reaction if the above is endergonic or draw an endergonic reaction if the above is exergonic).