Which of the following statement/s is/are TRUE of enzymes? 1. They increase the rate of reaction by stabilizing the transition state. II. They raise activation energy to shift the equilibrium to favor the products. . They lower activation energy by altering the products of a reaction. O l and III O Il and III O III only o l only

Consider the following free energy diagram for an uncatalyzed and enzyme-catalyzed reaction. Select all the statements that are true. Without enzyme With enzyme A+B Time AB O a. The rate of the enzyme catalyzed reaction is faster than the uncatalyzed reaction O b. The change in free energy for the reaction is greater in the catalyzed reaction, compared to the uncatalyzed reaction O c. The enzyme stabilizes the transition state for the reaction Od. The reaction is exergonic е. The reaction is now spontaneous due to the addition of enzyme Released Energy

Which of the following is NOT a true statement about the diagram below? Intermediate A Intermediate B End-product Pathway operates 2019 Pearson Education, Inc. O O O O Substrate Enzyme 1- Allosteric site -Enzyme 2 Enzyme 3- Pathway shuts down Bound end-product Feedback Inhibition The end-product None of the other four answers (all are true statements) Each enzyme is specific for its substrate The product of each enzyme reaction becomes a substrate for the next enzyme The diagram shows a metabolic pathway serves as a competitive inhibitor of the substrate on Enzyme 1