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Vitamin E functions primarily as ________.


A) a peroxide
B) a coenzyme
C) an antioxidant
D) a free radical
E) an immune stimulant

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Which of the following statements about vitamin A's role in the body is FALSE?


A) Only one-thousandth of the body's vitamin A is in the retina.
B) Vitamin A and beta-carotene protect the skin from sun damage.
C) Vitamin A maintains healthy cells in the mucous membranes.
D) Vitamin A supports normal fetal development during pregnancy.
E) Lycopene serves as a vitamin A precursor and acts as an antioxidant.

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Your old friend from high school has just moved to Northern Canada to do full-time research on bats in caves. She typically works in the caves during the day when the bats are there and leaves at sundown when the bats are active. Your friend is careful about her health and only purchases organic and all natural foods. Based on this information alone, which of the following foods would you recommend your friend regularly buy at the grocery store?


A) whole-grain bread
B) vitamin D-fortified milk
C) vitamin A-fortified carrot juice
D) wheat germ
E) vitamin K-rich whole-grain cereals

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Which part of the eye contains billions of molecules of vitamin A?


A) cornea
B) sclera
C) retina
D) macula
E) choroid

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What is the UL for vitamin K?


A) 200 μg/day
B) 400 μg/day
C) 600 μg/day
D) 500 μg/day
E) There is no UL.

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Which of the following statements accurately describes the vitamin E in foods?


A) Vitamin E is fairly stable to heat.
B) Most convenience foods are good sources of vitamin E.
C) Saturated oils are the major dietary sources of vitamin E.
D) The amount of alpha-tocopherol in foods is underestimated.
E) Egg yolks are a good source of vitamin E.

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What is another name for vitamin D 3 ?


A) ergocalciferol
B) foliocalciferol
C) cholecalciferol
D) phyllocalciferol
E) xanthociferol

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What role does vitamin D play in bone growth?

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Vitamin D is a member of a large and coo...

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What form of vitamin A supports reproduction but not growth?


A) retinal
B) retinol
C) retinoic acid
D) retinyl esters
E) Retin-A

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The best way to add antioxidants to the diet is to ________.


A) rely on supplements to meet RDA
B) combine dietary intake and supplementation
C) add a selenium supplement to a diet rich in vitamin E
D) eat generous servings of fruits and vegetables daily
E) create a diet rich in low-carb, high-protein foods

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Which food is a rich source of retinoids?


A) liver
B) broccoli
C) cantaloupe
D) sweet potato
E) spinach

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Which of the following describes the effect of vitamin A in foods?


A) Fast-food French fries are good sources of vitamin A.
B) Arctic explorers who have eaten large quantities of polar bear liver have become ill with symptoms suggesting vitamin A toxicity.
C) To date, scientists have been unable to solve the problem of vitamin A deficiencies in developing countries.
D) Chlorophyll in vegetables can be converted to active vitamin A in the intestinal cells.
E) Pregnant women should eat at least one ounce of beef liver per day to help ensure normal fetal eye development.

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Which of the following vitamins may reduce the risk of heart disease by slowing the oxidation of low-density lipoproteins?


A) A
B) E
C) K
D) D 2
E) D 3

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Which of the following accurately describes free radicals?


A) They are destroyed by air pollution.
B) They arise from normal metabolic reactions.
C) They promote cell repair and act as an anti-inflammatory agent.
D) They are immune to the presence of antioxidant nutrients.
E) They are more common in infants and children than adults and the elderly.

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Which of the following would cause a secondary vitamin K deficiency?


A) excess bile production
B) antibiotics
C) presence of oxalic acid in food
D) insufficient intake of green leafy vegetables
E) a high-fat, high-protein diet

Correct Answer

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Diseases affecting the liver or the ________ can interfere with the activation of vitamin D and produce symptoms of deficiency.


A) skin
B) pancreas
C) intestines
D) kidneys
E) stomach

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What is the UL for vitamin E?


A) 100 mg/day
B) 120 mg/day
C) 500 mg/day
D) 1000 mg/day
E) 1200 mg/day

Correct Answer

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The World Health Organization and UNICEF recommend supplements of ________ for all measles-infected infants and children.


A) iron
B) vitamin A
C) folic acid
D) phylloquinone
E) vitamin E

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The highest attainable bone density for an individual is called ____________________.

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Match the correct answer with the appropriate term.

Premises
Abnormal drying of the skin due to vitamin A deficiency
Vitamin K1
Kills vitamin K-producing bacteria in the intestine
Breaking open of red blood cells due to vitamin E deficiency
Another name for vitamin D
Defends the body against free radicals
A subgroup of vitamin E
Blindness caused by severe vitamin A deficiency
Soft bones caused by vitamin D deficiency in adults
Disease characterized by bowed legs and beaded ribs
Promotes vision
Food source rich in vitamin E
Calcium-binding protein in bones
Substance that promotes blood clotting
Vitamin A precursor found in plants
Food source of vitamin K
A vitamin D-dependent transport protein
Green pigment of plants
The alcohol form of vitamin A
Hereditary disease not caused or cured by vitamin K
Responses
Cabbage
Xerophthalmia
Vitamin K
Wheat germ oil
Osteomalacia
Calbindin
Antibiotics
Calciferol
Phylloquinone
Beta-carotene
Tocopherols
Osteocalcin
Hemophilia
Rickets
Retinol
Vitamin A
Erythrocyte hemolysis
Xerosis
Vitamin E
Chlorophyll

Correct Answer

Abnormal drying of the skin due to vitamin A deficiency
Vitamin K1
Kills vitamin K-producing bacteria in the intestine
Breaking open of red blood cells due to vitamin E deficiency
Another name for vitamin D
Defends the body against free radicals
A subgroup of vitamin E
Blindness caused by severe vitamin A deficiency
Soft bones caused by vitamin D deficiency in adults
Disease characterized by bowed legs and beaded ribs
Promotes vision
Food source rich in vitamin E
Calcium-binding protein in bones
Substance that promotes blood clotting
Vitamin A precursor found in plants
Food source of vitamin K
A vitamin D-dependent transport protein
Green pigment of plants
The alcohol form of vitamin A
Hereditary disease not caused or cured by vitamin K

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