A) a peroxide
B) a coenzyme
C) an antioxidant
D) a free radical
E) an immune stimulant
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
Multiple Choice
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
Correct Answer
verified
Multiple Choice
A) cornea
B) sclera
C) retina
D) macula
E) choroid
Correct Answer
verified
Multiple Choice
A) 200 μg/day
B) 400 μg/day
C) 600 μg/day
D) 500 μg/day
E) There is no UL.
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
Multiple Choice
A) ergocalciferol
B) foliocalciferol
C) cholecalciferol
D) phyllocalciferol
E) xanthociferol
Correct Answer
verified
Essay
Correct Answer
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View Answer
Multiple Choice
A) retinal
B) retinol
C) retinoic acid
D) retinyl esters
E) Retin-A
Correct Answer
verified
Multiple Choice
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
Correct Answer
verified
Multiple Choice
A) liver
B) broccoli
C) cantaloupe
D) sweet potato
E) spinach
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
Multiple Choice
A) A
B) E
C) K
D) D 2
E) D 3
Correct Answer
verified
Multiple Choice
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.
Correct Answer
verified
Multiple Choice
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
verified
Multiple Choice
A) skin
B) pancreas
C) intestines
D) kidneys
E) stomach
Correct Answer
verified
Multiple Choice
A) 100 mg/day
B) 120 mg/day
C) 500 mg/day
D) 1000 mg/day
E) 1200 mg/day
Correct Answer
verified
Multiple Choice
A) iron
B) vitamin A
C) folic acid
D) phylloquinone
E) vitamin E
Correct Answer
verified
Short Answer
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Matching
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