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When you exercise,your body uses glycogen to maintain blood glucose levels.Which vitamin acts as a coenzyme during this process?


A) folate
B) vitamin B₁₂
C) vitamin B₆
D) biotin

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

Correct Answer

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A deficiency of which of the following vitamins increases the risk for cardiovascular disease?


A) niacin
B) thiamin
C) vitamin B₆
D) riboflavin

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

Correct Answer

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The "three Ds"-dermatitis,diarrhea,and dementia-are symptoms of the advanced progression of which deficiency disease?


A) beriberi
B) pellagra
C) hypothyroidism
D) hyperthyroidism

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

Correct Answer

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A(n) ________ is an organic molecule that combines with an enzyme to activate it.


A) mineral
B) coenzyme
C) choline
D) antagonist

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

Correct Answer

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Which of the following is a component of fat-emulsifying bile?


A) pantothenic acid
B) biotin
C) choline
D) riboflavin

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

Correct Answer

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Which of the following describes the main symptom(s) of beriberi?


A) dermatitis
B) muscle wasting and nerve damage
C) hemorrhaging
D) blindness

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

Correct Answer

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The RDA for riboflavin for adults aged 19 years and older is 1.3 mg/day for men and:


A) 6 mg/day for women.
B) 25 mg/day for women.
C) .5 mg/day for women.
D) 1.1 mg/day for women.

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

Correct Answer

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Hyperthyroidism is most commonly caused by the autoimmune disease called:


A) Graves' disease.
B) pellagra.
C) beriberi.
D) cretinism.

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

Correct Answer

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Consuming both inadequate amounts of iodine and excessive amounts can cause a goiter to form.

A) True
B) False

Correct Answer

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Which vitamin can be made from the amino acid tryptophan?


A) niacin
B) ascorbic acid
C) phenylalanine
D) cobalamin

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

Correct Answer

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Since it is a water-soluble vitamin,vitamin B₁₂ cannot be stored by the liver.

A) True
B) False

Correct Answer

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Eric plays soccer and runs track.He relies on sports gels,candy,and soda for quick energy boosts after his games and track meets.Based on his activity level and snack preferences,he has an increased risk for:


A) B-vitamin deficiency.
B) blurred vision and dermatitis.
C) cancer.
D) allergies.

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

Correct Answer

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Riboflavin assists with antioxidant function through its role as a coenzyme for which enzyme?


A) glutathione peroxidase
B) alpha keto glutarate dehydrogenase
C) succinate
D) hexokinase

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

Correct Answer

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Which of the foods below has the highest amount of B-vitamins?


A) white bread rolls
B) polished rice
C) whole wheat bread
D) cheese

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

Correct Answer

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Eating too much of which compound below may lead to a fishy body odor?


A) ascorbic acid
B) niacin
C) acetyl CoA
D) choline

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

Correct Answer

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The major dietary source of iodine is:


A) saltwater fish.
B) fruits and vegetables.
C) dairy products.
D) iodized salt.

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

Correct Answer

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The chronic overconsumption of ________ can result in a biotin deficiency.


A) herbal tea
B) raw egg whites
C) natural licorice
D) grapefruit juice

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

Correct Answer

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Most Americans do not consume enough thiamin.

A) True
B) False

Correct Answer

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Thiamin is essential to carbohydrate metabolism.

A) True
B) False

Correct Answer

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The primary role of most of the B-vitamins is to:


A) directly provide the body with energy.
B) act as coenzymes.
C) maintain and repair body tissues.
D) maintain acid-base balance.

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

Correct Answer

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