test bank 2024/2025 updated Questions And Answers 100% correct Verified

Chapter 8 :) 1) Which of the following statement is FALSE? A) The free energy barrier in a chemical reaction must be overcome in order for products to form. B) An increase in temperature can result in an increased reaction rate. C) Lowering the free energy of the transition state can increase a reaction rate. D) At a given temperature and time all molecules in a solution or a sample will have the same energy. E) An enzyme can increase a reaction rate by lowering the activation energy. answer: d 2) In a favorable reaction the free energy of the products is ________ than the free energy of the reactants. less 3) Catalysts affect the thermodynamic f of a chemical reaction. false 4) Pyruvate carboxylase is an example of the ligase class of enzymes. true 5) In an enzyme-catalyzed reaction, the lifetime of the transition state is similar to the vibrational frequencies of covalent bonds. true