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Part 1. Carbohydrates

Topic: Carbohydrates Top of Form

1. The short term requirement for dietary carbohydrate

A. is based on energy need

B. is based on the type of carbohydrate needed

C. there is no short-term requirement

D. is based on gender and body size

2. Digestion of carbohydrate in the large intestine

A. does not occur B. involves the bacterial flora C. includes only galactose D. none of the above

3. In general, feeding sucrose to mammals:

A. increases sucrase activity

B. decreases sucrase activity

C. has no effect on sucrase activity

D. none of the above

4. The glycemic index:

A. measure of blood glucose levels

B. a measure of the relative ability of a carbohydrate to raise the blood glucose level

C. a measure of glycogen concentration of the muscle

D. none of the above

E. Top of Form

5. Which is not a physical property of dietary fiber:

A. water-holding capacity B. binding free fatty acids C. bile acid binding D. none of the above

6. Dietary fiber can:

A. reduce postprandial glycemic response

B. increase postprandial glycemic response

C. has no effect on postprandial glycemic response

D. none of the above

7. The plasma cholesterol lowering effect of water-soluble fiber affects mainly

A. saturated fatty acids B. HDL fractions C. LDL fractions D. none of the above

8. In general, dietary fiber:

A. significantly increases vitamin absorption

B. significantly decreases vitamin absorption

C. has no effect on vitamin absorption

D. none of the above

9. Dietary fiber:

A. increases transit time in the large intestine

B. decreases stool weight

C. concentrates large intestinal contents

D. none of the above

10. 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

11. 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

12. 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

13. Which lipoprotein is considered the major atherogenic agent

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

14. 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

发布时间：2008年05月26日