Chem 1022 Chapter 23 (Enzymes) Optional Study Guide

Chem 1022 Chapter 23 (Enzymes) Optional Study Guide - DR....

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DR. JIM BLOXTON’S OPTIONAL STUDY GUIDE TO ACCOMPANY CHEM 1022 CHAPTER 23 ENZYMES Note: This is an optional study guide. This study guide is not an exhaustive list of questions that could appear on quizzes or exams. These are sample questions that may or may not be used on a quiz or midterm exam or final exam. Other questions that are not found on this study guide will be on actual quizzes, midterm and final exams. It is important to do all of the homework problems that are in your Chem 1022 lecture text in addition to the questions in this study guide. Make sure that you do all of the Chemical Connections homework questions that have assigned. Learn the basic principles and then be prepared to apply the principles to problems that you have not seen before. Note: It is very important to remember that Chemistry is a cumulative topic and that the material that was covered in previous chapters needs to be reviewed as this material will continue to reappear in concepts that are needed to solve new problems. The following questions are to be answered from CHEM 1022 CHAPTER 23 LECTURE TEXT, LECTURE NOTES AND LECTURE SLIDES. 1. What are enzymes? 2. Are all enzymes composed of protein? Explain. 3. What are ribozymes and what are their roles? 4. How many polypeptide chain(s) are present in a protein enzyme? 5. How do enzymes affect the position of equilibrium and activation energy and speed of a reaction? 6. What is a substrate? 7. What condition must be met for an enzyme to be specific for a reaction with a molecule? 1
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8. What is substrate specificity? Give some examples. 9. What does urease catalyze? 10. What does trypsin catalyze? 11. What does carboxypeptidase catalyze? 12. What do lipases catalyze? Are lipases as specific in their reactions as urease, trypsin or carboxypeptidase? Explain. 13. Are enzymes sensitive to stereochemistry? Explain and give some examples. 14. How are enzymes distributed in the body and in the cells? 15. Do problems 23.1 – 23.6 in your lecture text to reinforce concepts in problems 1 – 14 in this study guide. 16. How are enzymes commonly named? Give some examples. What is the ending for most enzymes? Are there some exceptions? Give some examples. 17. What are the six major groups that enzymes are classified into? What types of reaction does each of these major types of enzymes catalyze? For each of these six major groups give an example of an enzyme and a reaction that the enzyme catalyzes. 2
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18. Do problems 23.7 – 23.10 in your lecture text to reinforce concepts in problems 16 – 17 in this study guide. 19. What is a cofactor? Give some examples. 20. What is an apoenzyme? Give some examples. 21. What is a coenzyme? Give some examples and their uses. 22. What is a substrate?
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Chem 1022 Chapter 23 (Enzymes) Optional Study Guide - DR....

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