Exam 2 Review 1 (post).docx - Exam 2 Review 1 1 Why is ATP...

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Exam 2 Review 1 10/24/15 1) Why is ATP an important molecule in metabolism? B) It provides energy coupling between exergonic and endergonic reactions. 2) What is the difference (if any) between the structure of ATP and the structure of the precursor of the A nucleotide in RNA? E) There is no difference. 3) Which of the following statements is true about enzyme-catalyzed reactions? A) The reaction is faster than the same reaction in the absence of the enzyme. 4) Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as the reaction's A) entropy. B) activation energy. C) endothermic level. D) equilibrium point. E) free-energy content. 5) Which of the following statements regarding enzymes is true? B) Enzymes increase the rate of a reaction by lowering the activation energy barrier . 6) During a laboratory experiment, you discover that an enzyme-catalyzed reaction has a G of -20 kcal/mol. If you double the amount of enzyme in the reaction, what will be the G for the new reaction?
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