Exam #4 - Lipids (Chapter 5) - Submit your exam here -Due 7/4

Here is Exam #4 on Lipids.  This exam is based off the material that you learned in Module 5.  This includes the reading and notes and links.  Please feel free to use any of your materials to help you with the exam.  This will allow you to go back through the material to find important information for review if you do not recall the info easily. This exam can be cut and pasted into a document and you can fill in the answers and then submit the exam here. Definitely let me know if you have any questions.

CCV-NUTRITION TEST (Lipids )                           GRADE:______________
NAME:___________________________________
TIME:____________________________________
DATE:____________________________________

MULTIPLE CHOICE- 2 points each

1. Lipids offer ________calories per gram. They are a concentrated source of ________ and they are absorbed directly into the ______________from the small intestine. (6 pts)

2. Fatty acids:

A. Occur in two forms: unsaturated and saturated

B. Are composed of chains of carbon atoms linked together

C. Have a methyl group at one end and a carboxyl group at the other

D. All of the above

E. Both A and B are correct

3. Monounsaturated fatty acids have:

A. No double bonds in their carbon chain

B. One double bond in their carbon chain

C. More than one double bond in their carbon chain

D. All of the above

E. A, B, and C are correct

4. Two food examples of mostly monounsaturated fatty acids would be found in

A. Coconut and Palm Oil

B. Flax seed and Salmon

C. Organic Butter and Red Meat

D. Avocadoes and Olive Oil

E. None of the above

5. Saturated fatty acids:

A. Are saturated with hydrogen atoms

B. Have no double bonds in their carbon chain

C. Have one or more double bonds in their carbon chain

D. Are found in great abundance in animal products

E. Are semi-solid---solid at room temperature

F. All of the above

G. A, B, D, and E are correct

H. A, C, D, and E are correct

6. A triglyceride is:

A. Composed of a glycerol molecule plus three fatty acids

B. The most common from of fat in the diet

C. The major storage form of fat in the body

D. Cholesterol is an example

E. All of the above

F. A, B, and C are correct

15. Alpha Linoleic Acid (Omega-3) and Linoleic Acid (omega -6):

A. Are essential fatty acids (EFA’s)

B. Are two examples of saturated fatty acids

C. Are the major storage form of fat in the body

D. All of the above

16. Sterols are lipids:

A. They have a characteristic ring structure

B. Cholesterol is an example of a sterol

C. They are necessary for the production of hormones, myelin sheaths and bile

D. All of the above

E. Both A and B are correct

Many people today are deficient in what type of fat.

A.  Saturated Fatty acids

B.  Cholesterol

C.  Phospholipids

D.  Omega 3

E.  Omega 6

MATCHING: Match the words with their corresponding characteristic. (2 points each) -Answers are only used once each.

_____ 22. Triglycerides              A. Every cell in the body can produce this

_____ 23. Omega 3                   B. The major storage form of fat in the body

_____ 24. Cholesterol               C. A type of trans fat

_____ 25. Hydrogenated Oil     D. We must obtain this through our diets

25. Discuss trans fats based on what we reviewed in class. (eg. What are they, where are they found, what have they been linked to? Etc. Be specific: (5 points)

26. Define a phospholipids. Both its structure and function (5 points)

27. What are three functions of fats in the body : (2 points each).

1.______________________________________________________________

2.______________________________________________________________

3.______________________________________________________________

28. List four benefits of good quality fat in the diet. (2 points each.)

1._____________________________________________________________

2._____________________________________________________________

3._____________________________________________________________

4._____________________________________________________________

29. What is homocysteine and what can it do in the body? What can be done to prevent the build-up of homocysteine in the body? (as discussed in class) (5 points)?

30. List four examples of good quality fat sources/choices in our diets. Briefly explain your reasoning. (2 points each). 1.___________________________________________________________________

2.____________________________________________________________________

3.____________________________________________________________________

4.____________________________________________________________________

TRUE and FALSE (2 points each)

33. ____True   _____False    Lipoproteins are designed to carry iron and oxygen through the blood stream to the cells of the body.

34. ____True _____False      HDL (High-density lipoproteins) carry lipids from the liver to the cells of the body.

35. ____True _____False LDL (Low-density lipoproteins) carry lipids from the tissues and blood and bring it back to the liver to be metabolized.

36. ____True _____False Eggs are a food to be avoided due to their high cholesterol level

36. Describe some of the benefits and roles of essential fatty acids in the body and overall health. Comment on why many people are deficient in essential fatty acids. (6 points)

37. Define atherosclerosis and arteriosclerosis (6 points).

38. List 4 examples of vascular irritants that could potentially damage blood vessels and lead to the development of atherosclerosis and arteriosclerosis: (2 points each)

1.____________________________________________________________________

2.____________________________________________________________________

3.____________________________________________________________________

4.____________________________________________________________________

39. Define Collateral Circulation. (5 points):

Extra Credit (3 points)

  List four food sources of omega 3