Ch 23 Catalysis 1. List three ways a catalyst can speed up a reaction.

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Presentation transcript:

Ch 23 Catalysis 1. List three ways a catalyst can speed up a reaction.

Ch 23 Catalysis 2. Identify the type of catalysis in the following, and draw arrows to show the mechanism. a. b.

Ch 23 Catalysis c. d. e.

Ch 23 Catalysis 3. Propose a mechanism for the following that involves a general acid catalyst

Ch 23 Catalysis 4. Propose a mechanism for the following that involves a general base catalyst

Ch 23 Catalysis 5. What are three factors that determine the rate of a reaction? 6. How does the rate of an intramolecular reaction compare to an intermolecular one?

Ch 23 Catalysis 7. Which of the following will react more rapidly? a. Elimination of HBr

Ch 23 Catalysis b. Lactone formation c. Anhydride formation

Ch 23 Catalysis d. Reaction with ethanol

Ch 23 Catalysis 8. What role does imidazole play in catalyzing the following reaction?

Ch 23 Catalysis 9. Explain the difference between the lock-and- key versus the induced fit model. 10. List three ways an enzyme can catalyze a reaction.

Ch 23 Catalysis 11. Analyze the catalysis of carboxypeptidase A:

Ch 23 Catalysis continued:

Ch 23 Catalysis 12. Analyze the catalysis of chymotrypsin:

Ch 23 Catalysis continued:

Ch 23 Catalysis continued:

Ch 23 Catalysis 13. Analyze the catalysis of lysozyme: