Time 1 hr 10 minutes
Please answer all sections. Please answer Qs1- 50 on your scantrons
For T/F questions (#1 to 14) – please write A if True and B if False
1. Saturated fatty acids increase HDL cholesterol levels
2. LDL cholesterol is an independent predictor of CHD
3. Fully hydrogenated fats contain no trans fatty acids
4. A significant contributor to CHD which is modifiable, is smoking status
5. Trans fatty acids result from the partial hydrogenation of vegetable oils
6. Chylomicrons contain apoB-48
7. As LDL is converted to HDL, the density of the particle increases
8. A non-modifiable risk factor for CHD is family history/genetics
9. Oleic acid is an essential fatty acid
10. Animal products contain the same trans fatty acids as commercial
products
11. For a 2000 kcal diet, 2% of calories from saturated FA is 4.4 g of saturated
FA
12. PUFA and MUFA are the major fatty acids made in the human body
13. Lipoproteins contain a phospholipid monolayer.
14. The phospholipid monolayer of lipoproteins determines their function of
while the proteins are primarily responsible for the structure of the membrane.
15. In a n3 fatty acid with 18 carbons and 3 double bonds, the double bonds would be
located on
a. Carbons 3, 6 and 9 from the carboxylic acid end.
b. Carbons 3, 6 and 9 from the methyl end.
c. Carbons 9, 12 and 15 from the methyl end.
d. Carbons 9, 12 and 15 from the carboxylic acid end.
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, 16. Which of the following enzymes is rate limiting in fatty acid oxidation?
a. Phosphofructokinase
b. Acetyl CoA carboxylase
c. Carnitine acyltransferase
d. HMG CoA reductase
17. Triacylglycerols with unsaturated fatty acids of longer chain length tend to be _______
at room temperature.
a. liquid oils
b. emulsified
c. non-esterified fats
d. solid fats
18. What is the most common lipid characterized by a four-ring core structure?
a. prostaglandins b. leukotrienes c. cholesterol
d. glycolipids
19. Which of the following apoproteins are normally NOT present in blood in the fasting
state?
a. Apo B-100
b. Apo A1
c. Apo B-48
d. Apo A4
20. The key to the cell’s internalization of LDL is the interaction between the receptors
and .
a. cholesterol acyltransferase
b. HMG COA reductase
c. apoprotein B-100
d. apoprotein B-48
21. Which dietary treatment is associated with increased cholesterol synthesis in the
liver?
a. feeding fiber
b. feeding saturated fatty acids
c. feeding animal proteins
d. feeding refined carbohydrates
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