ch 7 practice – Flashcards
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Which of the following vitamins is not added to grains during enrichment?
answer
vitamin B6
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Which vitamin is needed for the reaction labeled with the letter A?
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thiamin
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Which of the following descriptions of the water-soluble vitamins is false?
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thiamin - can be synthesized from tryptophan
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Which of the following statements is true of all the B vitamins?
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They are all coenzymes.
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Which of the following nutrients is not essential in the diet when sun exposure is adequate?
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vitamin D
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Which of the following statements about folate is false?
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It can be made in the body from methionine.
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The disease scurvy is due to a deficiency of
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vitamin C.
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A deficiency of vitamin K leads to
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decreased blood clotting.
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Which of the following is a poor source of ß-carotene?
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milk
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The food sources of _______________ are illustrated by this graph.
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vitamin B12
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The actions of _____________ are illustrated in this diagram.
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vitamin D
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It is recommended that older adults get their vitamin B12 from fortified foods and supplements because
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many have atrophic gastritis and are not able to absorb the vitamin B12 found in foods.
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Vitamin A deficiency causes the eye condition show here where
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mucus-secreting cells do not differentiate normally.
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Which of the following statements is true of vitamin E?
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It protects cell membranes from oxidative damage.
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Elevated blood homocysteine has been associated with an increased risk of cardiovascular disease. Deficiencies of __________________ may increase levels of homocysteine in the blood.
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vitamin B6, folate, and vitamin B12
