Question 1

The vitamin that mainly functions as a coenzyme in carbohydrate metabolism is

Accepted Answer

A)   thiamin.
B)   pyridoxine.
C)   niacin.
D)   riboflavin.E) A) and D)
F) A) and C)

Question 2

Acquiring sufficient vitamin B-12 from the diet may be a problem f vegans because

Accepted Answer

A)   phytic acid in vegetable proteins may inhibit its absorption.
B)   they lack the R-protein in the stomach.
C)   it is only found in animal products.
D)   deficiency may result from high intakes of legumes.E) A) and B)
F) B) and C)

Question 3

The childhood disease rickets is due to a _______ deficiency.

Accepted Answer

A)   vitamin D
B)   vitamin A
C)   vitamin C
D)   vitamin KE) None of the above
F) All of the above

Question 4

Which fat-soluble vitamins are most toxic if consumed in excess amounts over long periods of time?

Accepted Answer

A)   Vitamins D and K
B)   Vitamins A and E
C)   Vitamins A and D
D)   Vitamins E and KE) All of the above
F) A) and D)

Question 5

A reversible condition caused by a deficiency of vitamin A affecting the visual cycle is _______________.

Accepted Answer

The answer of A reversible condition caused by a deficiency...

Question 6

A typical serving of which food provides the most vitamin A?

Accepted Answer

A)   Yellow squash
B)   Egg
C)   Liver
D)   ApricotE) A) and B)
F) A) and C)

Question 7

An imptant role of vitamin K is the synthesis of

Accepted Answer

A)   alpha-tocopherol.
B)   rhodopsin.
C)   retinol.
D)   prothrombin.E) C) and D)
F) A) and B)

Question 8

_______________ is a water-soluble vitamin that enhances iron absption.

Accepted Answer

The answer of _______________ is a water-soluble vitamin that enhances...

Question 9

Vitamins involved in red blood cell synthesis are

Accepted Answer

A)   folate and thiamin.
B)   thiamin and niacin.
C)   vitamin B-12 and folate.
D)   folate and pantothenic acid.E) B) and C)
F) A) and D)

Question 10

Gege wants to increase his consumption of vitamin A f the possible cancer risk-reducing effects. Which of the following foods should he choose?

Accepted Answer

A)   Spinach
B)   Salmon
C)   Pears
D)   PotatoE) None of the above
F) A) and D)

Question 11

Which of the following is an antioxidant?

Accepted Answer

A)   Vitamin C
B)   Vitamin B-6
C)   Biotin
D)   NiacinE) B) and C)
F) A) and D)

Question 12

The best vitamin B-6 food sources include

Accepted Answer

A)   enriched breads and cereals.
B)   milk and dairy products.
C)   meat, fish, and poultry.
D)   deep yellow/orange fruits and vegetables.E) A) and D)
F) All of the above

Question 13

A deficiency of vitamin B-6 can result in depression, headaches, and confusion. These occur because of impaired

Accepted Answer

A)   hemoglobin synthesis.
B)   glucose metabolism.
C)   neurotransmitter synthesis.
D)   myelin synthesis.E) None of the above
F) A) and D)

Question 14

If you wanted to add significant quantities of vitamins and minerals to your diet from the food you eat, a good choice would be

Accepted Answer

A)   a doughnut made with enriched white flour.
B)   apple juice.
C)   a fortified breakfast cereal such as Total Raisin Bran.
D)   a banana.E) A) and D)
F) None of the above

Question 15

The vitamin that aids in activating fatty acids so they can yield energy is

Accepted Answer

A)   pantothenic acid.
B)   biotin.
C)   vitamin B-6.
D)   thiamin.E) All of the above
F) A) and C)

Question 16

In Nth America, the maj dietary source of vitamin ______ is ftified dairy products.

Accepted Answer

The answer of In Nth America, the maj dietary source...

Question 17

Water-soluble and fat-soluble vitamins differ in which way?

Accepted Answer

A)   Water-soluble vitamins are stored, whereas fat-soluble vitamins are excreted readily.
B)   Water-soluble vitamins are less likely to be toxic.
C)   Fat-soluble vitamins have much less potential for toxicity.
D)   Water-soluble vitamins are best absorbed in the presence of dietary fat.E) All of the above
F) None of the above

Question 18

Which statement about vitamins is true?

Accepted Answer

A)   Cannot be stored by the body
B)   Are inorganic
C)   Help regulate chemical reactions in the body
D)   Directly supply energyE) B) and C)
F) None of the above

Question 19

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) B) and D)

Question 20

Pellagra is characterized by all the following except

Accepted Answer

A)   dysphagia.
B)   diarrhea.
C)   dementia.
D)   dermatitis.E) A) and C)
F) B) and D)

Exam 8: Vitamins

Gege wants to increase his consumption of vitamin A f the possible cancer risk-reducing effects. Which of the following foods should he choose?

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The childhood disease rickets is due to a _______ deficiency.

Correct AnswerverifiedShow Answer

Which of the following is an antioxidant?

Correct AnswerverifiedShow Answer

Acquiring sufficient vitamin B-12 from the diet may be a problem f vegans because

Correct AnswerverifiedShow Answer

A reversible condition caused by a deficiency of vitamin A affecting the visual cycle is _______________.

Correct AnswerverifiedShow Answer

A deficiency of vitamin B-6 can result in depression, headaches, and confusion. These occur because of impaired

Correct AnswerverifiedShow Answer

Pellagra is characterized by all the following except

Correct AnswerverifiedShow Answer

If you wanted to add significant quantities of vitamins and minerals to your diet from the food you eat, a good choice would be

Correct AnswerverifiedShow Answer

A typical serving of which food provides the most vitamin A?

Correct AnswerverifiedShow Answer

The vitamin that mainly functions as a coenzyme in carbohydrate metabolism is

Correct AnswerverifiedShow Answer

Which statement about vitamins is true?

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Which fat-soluble vitamins are most toxic if consumed in excess amounts over long periods of time?

Correct AnswerverifiedShow Answer

An imptant role of vitamin K is the synthesis of

Correct AnswerverifiedShow Answer

A pantothenic acid deficiency

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In Nth America, the maj dietary source of vitamin ______ is ftified dairy products.

Correct AnswerverifiedShow Answer

Vitamins involved in red blood cell synthesis are

Correct AnswerverifiedShow Answer

Water-soluble and fat-soluble vitamins differ in which way?

Correct AnswerverifiedShow Answer

_______________ is a water-soluble vitamin that enhances iron absption.

Correct AnswerverifiedShow Answer

The best vitamin B-6 food sources include

Correct AnswerverifiedShow Answer

The vitamin that aids in activating fatty acids so they can yield energy is

Correct AnswerverifiedShow Answer

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