1. Chapter 8: Nutrients Involved in Energy Metabolism
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2. The B-vitamins act as enzymes essential for energy metabolism.
act as coenzymes to promote energy metabolism.
act as energy-yielding micronutrients.
are essential to the synthesis of thyroid hormones and the regulation of metabolic rate.
Answer: b) act as coenzymes to promote energy metabolism.
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3. The B-vitamins act as enzymes essential for energy metabolism.
act as coenzymes to promote energy metabolism.
act as energy-yielding micronutrients.
are essential to the synthesis of thyroid hormones and the regulation of metabolic rate.
Answer: b) act as coenzymes to promote energy metabolism.
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4. Vitamins required for the oxidation-reduction reactions involved in the catabolism of carbohydrates, fats, and proteins for energy include
thiamin and riboflavin, but not niacin.
thiamin and niacin, but not riboflavin.
riboflavin and niacin, but not thiamin.
thiamin, riboflavin, and niacin.
Answer: d) thiamin, riboflavin, and niacin.
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5. Vitamins required for the oxidation-reduction reactions involved in the catabolism of carbohydrates, fats, and proteins for energy include
thiamin and riboflavin, but not niacin.
thiamin and niacin, but not riboflavin.
riboflavin and niacin, but not thiamin.
thiamin, riboflavin, and niacin.
Answer: d) thiamin, riboflavin, and niacin.
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6. Niacin-deficiency disease is called
flushing.
marasmus.
pellagra.
beriberi.
Answer: c) pellagra.
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7. Niacin-deficiency disease is called
flushing.
marasmus.
pellagra.
beriberi.
Answer: c) pellagra.
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8. A coenzyme assisting in the breakdown of stored glycogen to glucose and in the conversion of amino acids to glucose is
vitamin B6.
folate.
vitamin B12.
vitamin B6, folate, and vitamin B12.
Answer: a) vitamin B6.
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9. A coenzyme assisting in the breakdown of stored glycogen to glucose and in the conversion of amino acids to glucose is
vitamin B6.
folate.
vitamin B12.
vitamin B6, folate, and vitamin B12.
Answer: a) vitamin B6.
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10. High blood levels of the amino acid homocysteine are associated with
high blood levels of the amino acid methionine.
vitamin B6, folate, and vitamin B12 toxicity.
an increased risk for cardiovascular disease.
an increased risk for neural tube defects.
Answer: c) an increased risk for cardiovascular disease.
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11. High blood levels of the amino acid homocysteine are associated with
high blood levels of the amino acid methionine.
vitamin B6, folate, and vitamin B12 toxicity.
an increased risk for cardiovascular disease.
an increased risk for neural tube defects.
Answer: c) an increased risk for cardiovascular disease.
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12. Adequate folate intake is essential during early pregnancy because
folate deficiency masks a simultaneous vitamin B12 deficiency.
folate is critical for cell division.
maternal folate deficiency increases the risk of cretinism.
folate helps maintain the myelin sheath coating nerve fibers.
Answer: b) folate is critical for cell division.
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13. Adequate folate intake is essential during early pregnancy because
folate deficiency masks a simultaneous vitamin B12 deficiency.
folate is critical for cell division.
maternal folate deficiency increases the risk of cretinism.
folate helps maintain the myelin sheath coating nerve fibers.
Answer: b) folate is critical for cell division.
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14. Which of the following statements about choline is true?
Choline is found exclusively in foods of animal origin.
Choline is a B-vitamin that assists in carbohydrate metabolism.
Choline is a neurotransmitter that is involved in muscle movement and memory storage.
Choline is a vitamin-like compound necessary for homocysteine metabolism and the synthesis of bile.
Answer: d) Choline is a vitamin-like compound necessary for homocysteine metabolism and the synthesis of bile.
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15. Which of the following statements about choline is true?
Choline is found exclusively in foods of animal origin.
Choline is a B-vitamin that assists in carbohydrate metabolism.
Choline is a neurotransmitter that is involved in muscle movement and memory storage.
Choline is a vitamin-like compound necessary for homocysteine metabolism and the synthesis of bile.
Answer: d) Choline is a vitamin-like compound necessary for homocysteine metabolism and the synthesis of bile.
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16. A trace mineral that plays an important role in carbohydrate metabolism, glucose transport into cells, RNA and DNA metabolism, immune function, and growth is
iodine.
chromium.
manganese.
sulfur.
Answer: b) chromium.
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17. A trace mineral that plays an important role in carbohydrate metabolism, glucose transport into cells, RNA and DNA metabolism, immune function, and growth is
iodine.
chromium.
manganese.
sulfur.
Answer: b) chromium.
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18. According to the World Health Organization (WHO), the greatest single cause of preventable brain damage and mental retardation in the world is
iodine deficiency.
chromium deficiency.
manganese deficiency.
sulfur deficiency.
Answer: a) iodine deficiency.
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19. According to the World Health Organization (WHO), the greatest single cause of preventable brain damage and mental retardation in the world is
iodine deficiency.
chromium deficiency.
manganese deficiency.
sulfur deficiency.
Answer: a) iodine deficiency.
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20. Research has consistently shown that individuals with poor B-vitamin status
have a reduced ability to perform physical activity involving intense bursts of energy, such as sprinting, but not endurance activity, such as running.
have a reduced ability to perform endurance activity, such as running, but not physical activity involving intense bursts of energy, such as sprinting.
have a reduced ability to perform most types of physical activity.
have a greatly increased risk of musculoskeletal injury with physical activity.
Answer: c) have a reduced ability to perform most types of physical activity.
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21. Research has consistently shown that individuals with poor B-vitamin status
have a reduced ability to perform physical activity involving intense bursts of energy, such as sprinting, but not endurance activity, such as running.
have a reduced ability to perform endurance activity, such as running, but not physical activity involving intense bursts of energy, such as sprinting.
have a reduced ability to perform most types of physical activity.
have a greatly increased risk of musculoskeletal injury with physical activity.
Answer: c) have a reduced ability to perform most types of physical activity.
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