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Exam 12: The Antioxidant Nutrients

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Question 31

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In which of the following population groups are the effects of vitamin A deficiency most severe?

A) adults
B) elderly
C) preschool children
D) adolescents

E) A) and D)
F) A) and C)

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Question 32

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MATCHING a.Acne b.Hypovitaminosis A c.Keratin d.Hemolytic e.Carotene f.Vitamin A g.Vitamin E h.Shrimp i.Yams j.55 k.90 l.Alpha-tocopherol m.Collagen n.Xerophthalmia o.Pro-oxidants p.Oxidants q.Vegetable oils r.Erythrocyte hemolysis s.Gout t.Retinol-binding protein -Typical food source of vitamin E

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Question 33

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Increasing the amount of polyunsaturated fats in the diet increases the need for which vitamin?

Which of the following is a characteristic of vitamin C and vitamin E?

MATCHING a.Acne b.Hypovitaminosis A c.Keratin d.Hemolytic e.Carotene f.Vitamin A g.Vitamin E h.Shrimp i.Yams j.55 k.90 l.Alpha-tocopherol m.Collagen n.Xerophthalmia o.Pro-oxidants p.Oxidants q.Vegetable oils r.Erythrocyte hemolysis s.Gout t.Retinol-binding protein -Vitamin A deficiency disease

If a normal, healthy adult were to begin consuming a vitamin A-poor diet, approximately how much time would pass before the first deficiency symptoms would appear?

Which of the following would be the poorest dietary source of vitamin C?

Which of the following would be a very good source of vitamin C for the lacto-ovo-vegetarian?

Which of the following disorders may result from vitamin E deficiency in people?

MATCHING a.Acne b.Hypovitaminosis A c.Keratin d.Hemolytic e.Carotene f.Vitamin A g.Vitamin E h.Shrimp i.Yams j.55 k.90 l.Alpha-tocopherol m.Collagen n.Xerophthalmia o.Pro-oxidants p.Oxidants q.Vegetable oils r.Erythrocyte hemolysis s.Gout t.Retinol-binding protein -Substances that significantly induce oxidative stress

Explain the role of vitamin A in growth and reproduction.

Why can antioxidants behave differently in the body depending upon their level of intake?

How is vitamin E thought to play a role in reducing the risk of heart disease?

An extremely high dose of vitamin E may interfere with the action of vitamin K, causing which of the following problems?

Which of the following proteins requires ascorbic acid for its formation?

Which of the following foods provides ample amounts of vitamin C?

Which of the following foods is a very good source of vitamin A?

Approximately what percent of the body's vitamin A stores are found in the liver?

Discuss food sources and stability of vitamin E.

In what ways have vitamin C supplements been shown to affect nasal congestion?