Question 1

In general, excess amounts of water-soluble vitamins are excreted via the

Accepted Answer

A)   kidneys.
B)   intestine.
C)   lungs.
D)   liver.E) A) and C)
F) None of the above

Question 2

Excessive use of antibiotics can negatively impact bone health through its effects on

Accepted Answer

A)   calcium absorption.
B)   vitamin D synthesis.
C)   vitamin K synthesis.
D)   phosphorus excretion.E) C) and D)
F) B) and D)

Question 3

Which of the following is an antioxidant?

Accepted Answer

A)   Vitamin C
B)   Vitamin B-6
C)   Biotin
D)   NiacinE) None of the above
F) A) and D)

Question 4

The foods that provide the largest source of riboflavin in the American diet are

Accepted Answer

A)   meats.
B)   whole grain cereals.
C)   milk and dairy products.
D)   dark green leafy vegetables.E) All of the above
F) C) and D)

Question 5

Which of the following vitamins serves as an antioxidant in cell membranes?

Accepted Answer

A)   Vitamin K
B)   Vitamin D
C)   Niacin
D)   Vitamin EE) None of the above
F) A) and B)

Question 6

Vitamin A supplements are needed by

Accepted Answer

A)   pregnant women.
B)   people with severe fat malabsorption.
C)   anyone trying to fend off a winter cold.
D)   All of these choices are correct.E) None of the above
F) A) and B)

Question 7

Vitamin E functions as

Accepted Answer

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

Question 8

Megadoses of _______________ may be used to lower cholesterol, but they can cause flushing of the skin.

Accepted Answer

A)   pyridoxine
B)   nicotinic acid
C)   riboflavin
D)   pantothenic acidE) C) and D)
F) None of the above

Question 9

The childhood deficiency disease for vitamin D is called _______________.

Accepted Answer

A)   osteopenia
B)   osteomalacia
C)   rickets
D)   osteoporosisE) All of the above
F) A) and B)

Question 10

Vitamin content of fruits and vegetables is preserved by all of the following methods EXCEPT

Accepted Answer

A)   storing fruits and vegetables in moisture-proof, airtight containers.
B)   storing fruits and vegetables in a cool place, such as the crisper drawer of the refrigerator.
C)   using cooking methods such as steaming, stir-frying, or microwaving.
D)   trimming and peeling fruits and vegetables soon after purchase.E) B) and C)
F) A) and C)

Question 11

______ are mostly stored in the liver and adipose tissue.

Accepted Answer

A)   B-vitamins
B)   Fat-soluble vitamins
C)   Water-soluble vitamins
D)   Vitamin CE) B) and C)
F) A) and C)

Question 12

A pantothenic acid deficiency

Accepted Answer

A)   is very unlikely because of its widespread availability.
B)   is very likely.
C)   occurs commonly in children.
D)   occurs commonly in the elderly.E) A) and B)
F) All of the above

Question 13

Exceeding the UL for folate

Accepted Answer

A)   is a common result of a diet rich in fruits and vegetables.
B)   can cause a vitamin B-12 deficiency.
C)   can mask a vitamin B-12 deficiency.
D)   cannot occur with synthetic forms of the vitamin.E) A) and C)
F) A) and D)

Question 14

Which of the following is true about the absorption, transport, and storage of fat-soluble vitamins?

Accepted Answer

A)   They enter the bloodstream directly from the small intestine.
B)   Fat in the digestive contents is not important for their absorption.
C)   They are not stored to any great extent.
D)   They are stored in the liver and fatty tissue.E) A) and B)
F) A) and C)

Question 15

Symptoms of ______ deficiency include glossitis, dermatitis, cheilosis, eye disorders, sun sensitivity, and confusion.

Accepted Answer

A)   thiamin
B)   niacin
C)   riboflavin
D)   folateE) A) and C)
F) All of the above

Question 16

Enrichment of grains was started in the 1930s. Enrichment was expanded to include in 1998.

Accepted Answer

A)   niacin
B)   thiamin
C)   iron
D)   folic acidE) C) and D)
F) B) and D)

Question 17

Which of the following serves as an antioxidant in cell membranes, protecting them and DNA inside cells, from damage?

Accepted Answer

A)   Vitamin K
B)   Vitamin D
C)   Niacin
D)   Vitamin EE) B) and C)
F) B) and D)

Question 18

Vitamin B-12 is supplied almost entirely by

Accepted Answer

A)   animal products.
B)   vegetables and fruits.
C)   whole grain cereals and legumes.
D)   human intestinal bacteria.E) A) and B)
F) All of the above

Question 19

Most vitamin A is stored in the

Accepted Answer

A)   kidneys.
B)   small intestine.
C)   liver.
D)   adipose tissue.E) All of the above
F) None of the above

Question 20

The nutrient that prevents beriberi is

Accepted Answer

A)   vitamin B-12.
B)   niacin.
C)   riboflavin.
D)   thiamin.E) A) and B)
F) None of the above

Exam 8: Vitamins

In general, excess amounts of water-soluble vitamins are excreted via the

Correct AnswerverifiedShow Answer

Megadoses of _______________ may be used to lower cholesterol, but they can cause flushing of the skin.

Correct AnswerverifiedShow Answer

A pantothenic acid deficiency

Correct AnswerverifiedShow Answer

Vitamin E functions as

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Which of the following is true about the absorption, transport, and storage of fat-soluble vitamins?

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The childhood deficiency disease for vitamin D is called _______________.

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Which of the following is an antioxidant?

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Vitamin B-12 is supplied almost entirely by

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The foods that provide the largest source of riboflavin in the American diet are

Correct AnswerverifiedShow Answer

Which of the following serves as an antioxidant in cell membranes, protecting them and DNA inside cells, from damage?

Correct AnswerverifiedShow Answer

Which of the following vitamins serves as an antioxidant in cell membranes?

Correct AnswerverifiedShow Answer

Most vitamin A is stored in the

Correct AnswerverifiedShow Answer

Enrichment of grains was started in the 1930s. Enrichment was expanded to include in 1998.

Correct AnswerverifiedShow Answer

Vitamin A supplements are needed by

Correct AnswerverifiedShow Answer

Excessive use of antibiotics can negatively impact bone health through its effects on

Correct AnswerverifiedShow Answer

______ are mostly stored in the liver and adipose tissue.

Correct AnswerverifiedShow Answer

Vitamin content of fruits and vegetables is preserved by all of the following methods EXCEPT

Correct AnswerverifiedShow Answer

The nutrient that prevents beriberi is

Correct AnswerverifiedShow Answer

Symptoms of ______ deficiency include glossitis, dermatitis, cheilosis, eye disorders, sun sensitivity, and confusion.

Correct AnswerverifiedShow Answer

Exceeding the UL for folate

Correct AnswerverifiedShow Answer

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