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Chapter 08 Review Questions
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  • 1. Wardlaw’s Contemporary Nutrition, Seventh Edition Copyright © The McGraw-Hill Companies, InC) Permission required for reproduction or display. Gordon M. Wardlaw Anne M. Smith Chapter 8
  • 2. Question 1
    • Which statement about vitamins is true?
    • A. Cannot be stored by the body
    • B. Are inorganic
    • C. Help regulate chemical reactions in the body
    • D. Directly supply energy
  • 3. Question 2
    • Which of the following is true about the intake of vitamins?
    • A. Supplemental vitamins are better than those from food.
    • B. Occasional lapses in vitamin intake should cause no harm.
    • C. It is hard to get all of the vitamins we need from food.
    • D. Vitamins consumed in excess are excreted.
  • 4. Question 3
    • Water-soluble and fat-soluble vitamins differ in which way?
    • A. Water-soluble vitamins are stored, whereas fat-soluble vitamins are excreted readily.
    • B. Water-soluble vitamins are less likely to be toxic.
    • C. Fat-soluble vitamins have much less potential for toxicity.
    • D. Water-soluble vitamins are best absorbed in the presence of dietary fat.
  • 5. Question 4
    • Which of the following is true about our current knowledge about vitamins?
    • A. We are sure there are more vitamins to be discovered for humans.
    • B. We cannot effectively feed individuals intravenously for long periods of time because we do not know about all the vitamins that must be included.
    • C. Most scientists believe we have discovered all vitamins relevant to humans.
    • D. We know that there are more fat-soluble vitamins to discover.
  • 6. Question 5
    • If you wanted to add significant quantities of vitamins and minerals to your diet from the food you eat, a good choice would be
    • A. a doughnut made with enriched white flour.
    • B. apple juice.
    • C. a fortified breakfast cereal such as Total Raisin Bran.
    • D. a banana.
  • 7. Question 6
    • Megadoses are defined as vitamin intake ________ times the estimated human need to prevent a deficiency.
    • A. 1 to 3
    • B. 3 to 5
    • C. 2 to 10
    • D. 50
  • 8. Question 7
    • Which of the following is true about the regulation of the production and sale of vitamin and mineral supplements?
    • A. There is no federal legislation regulating supplements.
    • B. The FDA does not regulate all vitamin and mineral supplements closely.
    • C. Americans can rest assured that the federal government will protect them from vitamin and mineral supplement overuse.
    • D. Supplement companies are free to market their products with invalid and illegal claims.
  • 9. Question 8
    • Which of the following is true about the absorption, transport, and storage of fat-soluble vitamins?
    • A. They enter the bloodstream directly after absorption.
    • B. Fat in the digestive contents is not important for their absorption.
    • C. They are not stored to any great extent.
    • D. After absorption, they are transported in the bloodstream to body cells and/or stored in the liver and fatty tissue.
  • 10. Question 9
    • Which fat soluble vitamins are most toxic if consumed in excess amounts over long periods of time?
    • A. Vitamins D and K
    • B. Vitamins A and E
    • C. Vitamins A and D
    • D. Vitamins D and K
  • 11. Question 10
    • Overconsumption of vitamins A and E can do all the following except
    • A. lead to accumulation in the liver.
    • B. result in toxicity.
    • C. cure colds and prevent cancer.
    • D. lead to debilitating side effects.
  • 12. Question 11
    • Which of the following does not describe fat-soluble vitamins?
    • A. They are stored in the body.
    • B. Excesses are excreted in the urine.
    • C. They are transported via the bloodstream.
    • D. They tend to exist in several biologically active forms.
  • 13. Question 12
    • All of the following are true statements regarding fat malabsorption except
    • A. results in decreased absorption of fat-soluble vitamins.
    • B. increases the risk of fat-soluble vitamin deficiency.
    • C. increases the risk of developing pellagra or beriberi.
    • D. increases the risk of developing hypovitaminosis A, rickets, or osteomalacia.
  • 14. Question 13
    • Which of the following is true about the forms of vitamin A?
    • A. Retinoids are found in plant foods.
    • B. Carotenoids are found in animal foods.
    • C. Carotenoids can be converted retinoids.
    • D. Retinoids are converted to carotenoids.
  • 15. Question 14
    • Most vitamin A is stored in the
    • A. kidneys.
    • B. small intestine.
    • C. liver.
    • D. adipose tissue.
  • 16. Question 15
    • Drying of the cornea due to vitamin A deficiency is called
    • A. apnea.
    • B. dysphagia.
    • C. xerophthalmia.
    • D. cachexia.
  • 17. Question 16
    • Which fat-soluble vitamin is important for the health of epithelial cells because it promotes mucus production?
    • A. A
    • B. E
    • C. C
    • D. D
  • 18. Question 17
    • Which of the following vitamins has been helpful in large doses as a treatment for acne?
    • A. C
    • B. D
    • C. A
    • D. E
  • 19. Question 18
    • Which of the following is the best source of preformed vitamin A?
    • A. Broccoli
    • B. Pork chop
    • C. Chicken breast
    • D. Liver
  • 20. Question 19
    • Which of the following is a good source of provitamin A?
    • A. Orange
    • B. Apricot
    • C. Cauliflower
    • D. Potatoes
  • 21. Question 20
    • George wants to increase his consumption of vitamin A for the possible cancer risk-reducing effects. Which of the following foods should he choose?
    • A. Spinach
    • B. Salmon
    • C. Pears
    • D. Potato
  • 22. Answer Key – Chapter 8
    • C
    • B
    • B
    • C
    • C
    • C
    • B
    • D
    • B
    • C
    • B
    • C
    • C
    • C
    • C
    • A
    • C
    • D
    • B
    • A