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Vitamin E functions as


A) a coenzyme.
B) an antioxidant.
C) a hormone.
D) an enzyme.

E) None of the above
F) B) and D)

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Most vitamin A is stored in the


A) kidneys.
B) small intestine.
C) liver.
D) adipose tissue.

E) B) and C)
F) A) and B)

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Chronic overconsumption of vitamins A and E can result in


A) increased urine output.
B) vitamin E and K deficiencies.
C) prevention of colds and cancer.
D) debilitating side effects.

E) C) and D)
F) None of the above

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Protein-rich diets,especially those that include many animal sources of protein are high in


A) calcium.
B) zinc.
C) vitamin E
D) beta carotene.

E) A) and B)
F) None of the above

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The most bioavailable source of vitamin E is


A) plant oil.
B) fish oil.
C) alpha-tocopherol supplements.
D) mixed-tocopherol supplements.

E) A) and C)
F) B) and C)

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Which of the following cancers is unrelated to body fatness or excessive calorie intake?


A) Lung
B) Breast
C) Colon
D) Pancreatic

E) B) and D)
F) C) and D)

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The best zinc source is


A) potatoes.
B) turkey.
C) pears.
D) cheese.

E) B) and C)
F) None of the above

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Which of the following is true about the forms of vitamin A?


A) Retinoids are found in plant foods.
B) Retinoids are converted to carotenoids.
C) Carotenoids are found in animal foods.
D) Carotenoids are converted to retinoids.

E) A) and B)
F) B) and C)

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Probiotics help to reinforce the integrity of the gastrointestinal tract by forming a network of proteins that blocks the movement of pathogens through its lining.If the integrity of the GI tract lining is compromised,pathogens can move more easily into the blood.This condition of compromised integrity of the GI tract is called


A) the gut microbiota.
B) a Metchnikoff gut.
C) a leaky gut.
D) an autoimmune disease.

E) None of the above
F) A) and B)

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Which of the following is an antioxidant?


A) Vitamin C
B) Vitamin B-6
C) Biotin
D) Niacin

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

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When an atom or molecule is ______,it gains electrons.


A) oxidized
B) reduced
C) hydrolyzed
D) dehydrogenated

E) None of the above
F) A) and C)

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Replacing animal fats with plant oils in the diet would not only cut saturated fat intake,but would also increase


A) vitamin A intake.
B) vitamin C intake.
C) vitamin E intake.
D) selenium intake.

E) A) and B)
F) B) and D)

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The best way to improve the body's defense against free radicals is to


A) take antioxidant supplements.
B) increase intake of processed meats.
C) exercise at high altitudes.
D) consume plenty of fruits and vegetables.

E) A) and D)
F) B) and D)

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Which of the following is true about selenium?


A) It is needed for insulin formation and use.
B) An excess can cause hypertension.
C) It acts as a cofactor in protein metabolism.
D) It participates in antioxidant reactions.

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

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Probiotics are being studied for their potential to improve many aspects of health.At this time,the best evidence exists to support the role of probiotics in


A) reducing symptoms of ulcerative colitis.
B) prevention of urinary tract infections.
C) reduction of diarrheal diseases.
D) prevention of respiratory tract infections.

E) A) and B)
F) B) and C)

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The vitamin C content of foods can be decreased by


A) exposure to cool temperatures.
B) microwaving.
C) exposure to oxygen.
D) consuming with spinach.

E) All of the above
F) A) and B)

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Suzanne takes a supplement containing a strain of bacteria known as Lactobacillus rhamnosus GG in hopes that it will colonize her large intestine and promote health.This supplement is a(n)


A) probiotic.
B) synbiotic.
C) prebiotic.
D) antibiotic.

E) A) and B)
F) A) and C)

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Match the following with the descriptions below.

Premises
Foods that have health benefits beyond basic nutrition
Substance that has the ability to prevent or repair the damage caused by oxidation
Animal chemical that has health protective actions
Pigment materials in fruits and vegetables that can be turned into vitamin A in the body
Unstable atom with an unpaired electron in its outermost shell
Plant chemical that has health protective actions
Responses
Free radical
Functional foods
Carotenoids
Phytochemical
Antioxidant
Zoochemical

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Foods that have health benefits beyond basic nutrition
Substance that has the ability to prevent or repair the damage caused by oxidation
Animal chemical that has health protective actions
Pigment materials in fruits and vegetables that can be turned into vitamin A in the body
Unstable atom with an unpaired electron in its outermost shell
Plant chemical that has health protective actions

Formation and maintenance of collagen requires


A) thiamin.
B) vitamin C
C) pantothenic acid.
D) folate.

E) All of the above
F) A) and D)

Correct Answer

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Lycopene is found in


A) grapes.
B) carrots.
C) tomatoes.
D) whole grain products.

E) C) and D)
F) B) and C)

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