NUSCTX 10 Exam-2016 Midterm-2

1. You have version A of the exam. Please mark A for question 1.

2. Which of the following is an important reason to consume insoluble fiber?

a. It provides digestible energy.

b. It provides a source of energy for intestinal bacteria in humans.

c. It facilitates the removal of solid waste by providing bulk.

d. It inhibits the passage of stool.

e. It supplies many water-soluble vitamins.

3. If an individual receives federal nutrition assistance and nutrition education, and lives near a grocery store, why might he/she still suffer from food insecurity?

a. Instability in economic or environmental climate

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b. Lack of food availability

c. Lack of resource access

d. Lack of utilization knowledge

e. All of the above factors are resulting in food insecurity.

4. Why do white breads contain minimal fiber?

a. The process of refinement removes the bran, which contains most of a grain’s fiber.

b. The process of refinement removes the endosperm, which contains most of a grain’s fiber.

c. Gluten inhibits the bioavailability of fiber.

d. Grains are poor sources of fiber.

e. Wheat is a poor source of fiber.

5. Which of the following is NOT a result of glucagon release?

a. Increased blood glucose concentration

b. Decreased blood glucose concentration

c. Increased rate of glycogenolysis

d. Increased rate of gluconeogenesis

e. Increased release of glucose from liver

6. Which of the following pieces of information MUST appear on labels of dietary supplements?

a. Structure-function claims

b. Nutrient content claims

c. Disease prevention claims

d. Disease treatment claims

e. Suggested daily dose

7. Why is it important to avoid consuming dietary supplements with mega-doses of micronutrients?

a. They may exceed the Tolerable Upper Intake Level and pose risks of toxicity.

b. They are more expensive than supplements with lower doses.

c. They are less effective than supplements with lower doses.

d. They are not absorbed as well as supplements with lower doses.

e. They will be readily excreted if consumed in excess of the body’s need.

8. Which of the following is a/are modifiable risk factor(s) for type 2 diabetes mellitus?

a. Age greater than 45 years

b. Family history

c. Non-Caucasian ethnicity

d. Low HDL

e. All of the above are modifiable risk factors.

9. Which of the following substances helps with digestion and absorption by emulsifying fats?

a. Salivary amylase

b. Hydrochloric acid

c. Bile acids

d. Pepsin

e. Trypsin

10. All of the following are functions of cholesterol EXCEPT: NUSCTX 10 Exam-2016 Midterm-2

a. Precursor to bile salt

b. Structure of cell membranes

c. Precursor to hormones

d. Precursor to vitamin D

e. Energy source

11. Heme iron is more ______ than nonheme iron. This means that a higher percentage of heme iron can be absorbed and used by the body.

a. Competitive

b. Bioavailable

c. Essential

d. Energy efficient

e. None of the above

12. All of the following are trace minerals EXCEPT:

a. Iron

b. Copper

c. Calcium

d. Selenium

e. Zinc

13. Which of the following is NOT a function of lipids in the body?

a. Facilitate absorption of some vitamins

b. Comprise cell membranes

c. Store energy in adipose tissue

d. Provide energy during fasting

e. Provide energy during short, intense exercise

14. Which of the following polysaccharides is not digestible?

a. Glycogen

b. Fiber

c. Glucose

d. Starch

e. Amylase

15. ______ blood levels of calcium cause the release of parathyroid hormone, which ______

intestinal absorption of calcium.

a. High; stimulates

b. Low; increases

c. High; decreases

d. Low; decreases

e. Moderate; halts

16. Which of the following is a critical function of water-soluble vitamins?

a. Promote blood clotting

b. Act as coenzymes to facilitate chemical reactions

c. Act as hormones to promote bone formation

d. Yield energy

e. All of the above