Chem 1022 Chapter 21 (Lipids) Optional Study Guide

Chem 1022 Chapter 21 (Lipids) Optional Study Guide - DR....

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DR. JIM BLOXTON’S OPTIONAL STUDY GUIDE TO ACCOMPANY CHEM 1022 CHAPTER 21 LIPIDS 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 21 LECTURE TEXT, LECTURE NOTES AND LECTURE SLIDES. 1. What is a lipid? 2. What is the difference in the way that lipids and carbohydrates are defined? 3. What are the classifications by function of the three major roles of lipids in human biochemistry? 4. How do lipids store energy in the human body? 5. Give a comparison of the amount of energy that is stored in one gram of fat as compared to one gram of glycogen. 6. What does hydrophobic mean? Are lipids hydrophobic? Explain why or why not. 1
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7. Why is the lack of water solubility an important property for lipids? How does the lack of water solubility in lipids relate to cell membranes? 8. Lipids can serve as chemical messengers. Give the two types of chemical messengers and give examples of lipids that are classified as these two types of chemical messengers and give the functions of these lipids as chemical messengers. 9. How are lipids classified according to structure? 10. Do problems 21.2 – 21.3 in your lecture text to reinforce concepts in problems 1 – 9 in this study guide. 11. Draw the structure of glycerol. 12. What is a triglyceride or triacylglyceride? Give an example with a drawing. 13. What is a fatty acid? 14. Are most fatty acids unbranched or branched carboxylic acids? How many carbons are in most fatty acids? 2
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15. What can be said about the number of carbon atoms in fatty acids? Are they even or odd? 16. Draw and name the functional group that is present in all fatty acids. 17. What type of carbon carbon double bond predominates in fatty acids? Illustrate with a drawing. 18. Why are only even numbered fatty acids found in triglycerides? 19. What is the most common lipid material?
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Chem 1022 Chapter 21 (Lipids) Optional Study Guide - DR....

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