Question 1

Which of the following is a feature of vitamin K?

Accepted Answer

A)  Deficiencies lead to intravascular clotting
B)  Major dietary sources are whole grains and legumes
C)  No adverse effects have been reported with high intakes
D)  Primary deficiencies are more common than secondary deficienciesE) A) and D)
F) C) and D)

Question 2

Absorption efficiency of vitamin D supplements is markedly improved when they are taken

Accepted Answer

A)  with a large meal.
B)  with a small meal.
C)  with orange juice.
D)  on an empty stomach.E) B) and D)
F) All of the above

Question 3

The adult RDA for vitamin A is approximately

Accepted Answer

A)  400 mg.
B)  1,000 mg.
C)  800 retinol activity equivalents.
D)  5,000 retinol activity equivalents.E) B) and D)
F) B) and C)

Question 4

Approximately what percentage of the body's store of vitamin K is derived from GI tract bacterial synthesis?

Accepted Answer

A)  Less than 5
B)  25
C)  50
D)  85E) A) and B)
F) A) and C)

Question 5

What population group has the highest risk for vitamin K deficiency?

Accepted Answer

A)  Adults
B)  Elderly
C)  Newborns
D)  TeenagersE) A) and B)
F) A) and C)

Question 6

Which of the following disorders may result from vitamin E deficiency in people?

Accepted Answer

A)  Rickets
B)  Xerophthalmia
C)  Muscular dystrophy
D)  Erythrocyte hemolysisE) A) and B)
F) None of the above

Question 7

How many micrograms of dietary beta-carotene are equivalent to 1 retinol activity equivalent?

Accepted Answer

A)  2
B)  4
C)  8
D)  12E) A) and C)
F) None of the above

Question 8

Approximately how many children worldwide have vitamin A deficiency?

Accepted Answer

A)  5 million
B)  25 million
C)  250 million
D)  500 millionE) A) and B)
F) A) and D)

Question 9

Which of the following describes an event in the visual response process?

Accepted Answer

A)  Light energy strikes the retina and excites pigments to release retinal
B)  Light energy strikes the cornea and excites pigments to release retinoic acid
C)  Visual pigments deep in the brain are excited by light transmitted through the retina
D)  Epithelial cells on the surface of the eye respond to light energy by transmitting opsin molecules along nerve pathways to the brainE) C) and D)
F) None of the above

Question 10

In comparison with the RDA for vitamin E,about how many fold higher is the Tolerable Upper Intake Level?

Accepted Answer

A)  2
B)  10
C)  25
D)  65E) None of the above
F) B) and C)

Question 11

Keratinization of lung cells may result from

Accepted Answer

A)  toxicity of vitamin A.
B)  toxicity of beta-carotene.
C)  deficiency of vitamin A.
D)  deficiency of vitamin D.E) A) and B)
F) A) and C)

Question 12

Which of the following is the most likely side effect for a person who regularly consumes large quantities of carrots or carrot juice?

Accepted Answer

A)  Bone pain
B)  Dermatitis
C)  Skin yellowing
D)  Vitamin A toxicityE) C) and D)
F) A) and B)

Question 13

What form of vitamin A supports vision but not growth?

Accepted Answer

A)  Retinal
B)  Retinol
C)  Retinoic acid
D)  Retinyl estersE) A) and C)
F) None of the above

Question 14

What is the major carrier of the fat-soluble vitamins from the intestinal epithelial cell to the circulation?

Accepted Answer

A)  Albumin
B)  Cholesterol
C)  Chylomicrons
D)  Liposoluble binding proteinsE) C) and D)
F) A) and B)

Question 15

What is the name of the vitamin D-deficiency disease in adults?

Accepted Answer

A)  Rickets
B)  Osteomalacia
C)  Keratomalacia
D)  HyperkeratosisE) A) and C)
F) B) and C)

Question 16

If a normal,healthy adult were to begin consuming a vitamin A-poor diet,approximately how much time would pass before the first deficiency symptoms would appear?

Accepted Answer

A)  2 weeks
B)  1 to 2 months
C)  6 months
D)  1 to 2 yearsE) All of the above
F) B) and C)

Question 17

Increasing the amount of polyunsaturated fats in the diet increases the need for vitamin

Accepted Answer

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

Question 18

Which of the following is NOT a fat-soluble vitamin?

Accepted Answer

A)  Retinol
B)  Tocopherol
C)  Phylloquinone
D)  CyanocobalaminE) C) and D)
F) A) and B)

Question 19

Which of the following is characteristic of the tocopherols?

Accepted Answer

A)  Good food sources include lean meats and dairy
B)  The various tocopherols perform similar roles in the body
C)  They are usually found in foods high in polyunsaturated fats
D)  The various tocopherol compounds can be converted to the active alpha-tocopherolE) All of the above
F) A) and B)

Question 20

What is the Recommended Dietary Allowance for vitamin D in individuals around 20 years of age?

Accepted Answer

A)  5 μg
B)  10 μg
C)  15 μg
D)  20 μgE) A) and B)
F) B) and C)

Exam 11: The Fat-Soluble Vitamins: A, d, e, and K

Which of the following describes an event in the visual response process?

Correct AnswerverifiedShow Answer

Which of the following disorders may result from vitamin E deficiency in people?

Correct AnswerverifiedShow Answer

What is the major carrier of the fat-soluble vitamins from the intestinal epithelial cell to the circulation?

Correct AnswerverifiedShow Answer

Which of the following is the most likely side effect for a person who regularly consumes large quantities of carrots or carrot juice?

Correct AnswerverifiedShow Answer

Absorption efficiency of vitamin D supplements is markedly improved when they are taken

Correct AnswerverifiedShow Answer

Which of the following is characteristic of the tocopherols?

Correct AnswerverifiedShow Answer

Which of the following is NOT a fat-soluble vitamin?

Correct AnswerverifiedShow Answer

Approximately how many children worldwide have vitamin A deficiency?

Correct AnswerverifiedShow Answer

If a normal,healthy adult were to begin consuming a vitamin A-poor diet,approximately how much time would pass before the first deficiency symptoms would appear?

Correct AnswerverifiedShow Answer

What is the Recommended Dietary Allowance for vitamin D in individuals around 20 years of age?

Correct AnswerverifiedShow Answer

Keratinization of lung cells may result from

Correct AnswerverifiedShow Answer

Increasing the amount of polyunsaturated fats in the diet increases the need for vitamin

Correct AnswerverifiedShow Answer

In comparison with the RDA for vitamin E,about how many fold higher is the Tolerable Upper Intake Level?

Correct AnswerverifiedShow Answer

The adult RDA for vitamin A is approximately

Correct AnswerverifiedShow Answer

Approximately what percentage of the body's store of vitamin K is derived from GI tract bacterial synthesis?

Correct AnswerverifiedShow Answer

What is the name of the vitamin D-deficiency disease in adults?

Correct AnswerverifiedShow Answer

What population group has the highest risk for vitamin K deficiency?

Correct AnswerverifiedShow Answer

How many micrograms of dietary beta-carotene are equivalent to 1 retinol activity equivalent?

Correct AnswerverifiedShow Answer

What form of vitamin A supports vision but not growth?

Correct AnswerverifiedShow Answer

Which of the following is a feature of vitamin K?

Correct AnswerverifiedShow Answer

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