Topic: Lipids  

1. The two most prevalent saturated fatty acids in the American Diet are:

A. myristic acid and palmitic acid

B. stearic acid and palmitic acid

C. stearic acid and oleic acid

D. linoleic acid and lauric acid

2. Bile acids help to:

A. break the bonds of triglycerides

B. esterfy fatty acids

C. solubilize fatty acid

D. have no effect on fatty acid digestion

3. Which fatty acid does not have an effect on serum LDL-cholesterol concentrations:

A. lauric acid B. myristic acid C. palmitic acid D. stearic acid

4. Which lipoprotein is considered the major atherogenic agent

A. LDL B. VLDL C. HDL D. LLDL

5. The major action of n-3 fatty acids on plasma lipoproteins is:

A. to lower LDL B. to lower HDL C. to lower triglyceride levels  D. to increase HDL

6. Top of Form Monounsaturated fatty acids:

A. increase serum lipid similar to SFA's

B. decrease serum lipid as compared to SFA's

C. have no effect on serum lipid levels

D. none of the above

7. In general, hydrogenated fatty acids used in foods (margarines, shortenings, etc.):

A. decrease serum lipid levels

B. increase serum lipid levels

C. unknown, as there have been no controlled experiments to test this

D. none of the above

8. Which of the following fatty acids is the most likely one that will effect serum cholesterol levels:

A. C8 B. C18 C. C14 D. none of the above

9. In general, studies in nonhuman primates have found that the relationship between dietary SFA's and  serum cholesterol:

A. is significantly different than that observed in humans

B. does not include SFA's, but is more related to PUFA's

C. are not valid because nonhuman primates do not have serum cholesterol

D. none of the above

10. Dietary intake of SFA's is:

A. a poor predictor of serum triglyceride levels

B. a good predictor of serum triglyceride levels

C. no controlled studies have been completed

D. none of the above

11. In one study, substituting monounsaturated fat for half of the saturated fat was found to reduce CHD risk more than substituting carbohydrates for half of the saturated fat.

True False

12. 31 . Trans-fatty acids appear to have their greatest effect on:

A. HDL B. Triglycerides C. LDL D. VLDL

13. 32. Which of the following does not effect the measurement of serum HDL?

A. fluctuations in weight

B. fasting

C. excessive alcohol intake

D. short term (1-2 days) changes in one's diet

14. In a study published in the New England Journal of Medicine researchers showed that women eating a diet high in monounsaturated fats were better protected against heart disease than were women consuming diets high in poly-unsaturated fats.

True False

15. Serum HDL concentration is not an important marker for heart disease.

True False