Question 1

A child with bowed legs is likely deficient in vitamin

Accepted Answer

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

Question 2

All of the following are features of vitamin K in nutrition except

Accepted Answer

A)  infants frequently require a supplement at birth.
B)  good food sources are plants of the cabbage family.
C)  risk of deficiency is increased in people taking antibiotics for prolonged periods.
D)  gut microflora synthesis supplies sufficient amounts to meet the needs of most healthy adults.

Question 3

Which of the following is not a feature of vitamin D deficiency?

Accepted Answer

A)  It causes a calcium deficiency
B)  It causes excess iron absorption
C)  It leads to overt signs only rarely
D)  It leads to low blood calcium which in turn promotes seizures

Question 4

Greg says that he usually eats 1 medium carrot every day to ensure that he's consuming enough vitamin A.Today he said he didn't eat any carrots and is worried that there is not enough vitamin A in his system.What would you say to Greg to allay his fear?

Accepted Answer

A)  "Take a vitamin A supplement as soon as you can!"
B)  "As long as you eat some chicken tonight you will not develop chicken eyes."
C)  "Well, there isn't any vitamin A in carrots so you probably haven't consumed vitamin A for some time now."
D)  "Don't worry; fat-soluble vitamins are stored in the body.It takes a lot longer than one day to develop any adverse effects."

Question 5

Which of the following is a property of the tocopherols?

Accepted Answer

A)  Easily destroyed by air and oxygen
B)  Act as precursors for the menaquinones
C)  May dissolve from foods into cooking water
D)  Absorbed from the intestines into the portal circulation

Question 6

Which of the following features are shared by Retin-A and Accutane?

Accepted Answer

A)  They are teratogenic
B)  They are highly toxic
C)  They are usually taken orally
D)  They have chemical structures similar to vitamin A

Question 7

All of the following are characteristics of excess consumption of beta-carotene except

Accepted Answer

A)  overconsumption from foods is harmless.
B)  overconsumption from supplements is harmless.
C)  drinking alcohol worsens the adverse effects of supplements.
D)  smoking cigarettes aggravates the detrimental effects of supplements. B

Question 8

Which of the following features do vitamins C and E share?

Accepted Answer

A)  Both function as antioxidants
B)  Both require bile for absorption
C)  Neither participates in protein synthesis
D)  Neither is affected by the processing of foods

Question 9

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

Accepted Answer

A)  Rickets
B)  Xerophthalmia
C)  Muscular dystrophy
D)  Erythrocyte hemolysis D

Question 10

Which of the following conditions is known to lead to formation of mineral deposits in the blood vessels and kidney?

Accepted Answer

A)  Excessive intake of vitamin D
B)  Inadequate intake of vitamin D
C)  Excessive intake of tocopherols
D)  Inadequate intake of tocopherols

Question 11

Which of the following is a characteristic of carotenoids in foods?

Accepted Answer

A)  Most carotenoids can be converted to vitamin A
B)  The carotenoid with the highest conversion rate to vitamin A is lycopene
C)  Carotenoid absorption efficiency from salads is higher when regular dressing is used compared with low-fat dressing
D)  Carotenoid absorption is inhibited by foods rich in chlorophyll

Question 12

Which of the following is a characteristic of vitamin C and vitamin E?

Accepted Answer

A)  Both protect against LDL oxidation
B)  Neither reduces arterial inflammation
C)  Neither participates in regulating blood clotting
D)  Both act as prooxidants at physiological intakes

Question 13

Which of the following is a feature of vitamin D?

Accepted Answer

A)  The bioavailability of vitamin D from soy milk is low
B)  Lifeguards on southern beaches have increased risk for vitamin D toxicity
C)  Most adults living in the southern United States need small amounts of dietary vitamin D
D)  The average consumption in the United States does not meet the recommended intake

Question 14

If the diet contains precursor vitamin A, which of the following tissues can use it to form vitamin A?

Accepted Answer

A)  Eyes
B)  Kidneys
C)  Adipose cells
D)  Intestinal cells

Question 15

Which of the following is a feature of vitamin K?

Accepted Answer

A)  A deficiency increases the risk for hemophilia
B)  A deficiency leads to keratinization of the cornea
C)  Bacteria in the intestines synthesize bioavailable vitamin K
D)  There are multiple forms in the diet of which menadione is the naturally occurring form

Question 16

Which of the following is a feature of vitamin E?

Accepted Answer

A)  Functions as a hormone-like substance
B)  Toxicity symptoms include bone abnormalities
C)  Deficiencies occur from inability to absorb dietary lipids
D)  Important food sources include enriched breads and pasta

Question 17

Which of the following shows the highest vitamin D activity?

Accepted Answer

A)  Cholecalciferol
B)  7-Dehydrocholesterol
C)  25-Hydroxy vitamin D
D)  1,25-Dihydroxy vitamin D

Question 18

The preferred unit of expression of vitamin A is the

Accepted Answer

A)  milligram.
B)  global unit.
C)  international unit.
D)  retinol activity equivalent.

Question 19

The animal version of vitamin D is known as

Accepted Answer

A)  ergocalciferol.
B)  foliocalciferol.
C)  cholecalciferol.
D)  phyllocalciferol.

Question 20

What tissue contains the majority of the body's store of vitamin A?

Accepted Answer

A)  Liver
B)  Adipose
C)  Retinal cells
D)  Intestinal mucosal cells

Exam 11: The Fat-Soluble Vitamins: A, D, E, and K

A child with bowed legs is likely deficient in vitamin

Correct AnswerverifiedD

All of the following are features of vitamin K in nutrition except

Correct AnswerverifiedShow Answer

Which of the following is not a feature of vitamin D deficiency?

Correct AnswerverifiedShow Answer

Greg says that he usually eats 1 medium carrot every day to ensure that he's consuming enough vitamin A.Today he said he didn't eat any carrots and is worried that there is not enough vitamin A in his system.What would you say to Greg to allay his fear?

Correct AnswerverifiedShow Answer

Which of the following is a property of the tocopherols?

Correct AnswerverifiedShow Answer

Which of the following features are shared by Retin-A and Accutane?

Correct AnswerverifiedShow Answer

All of the following are characteristics of excess consumption of beta-carotene except

Correct AnswerverifiedB

Which of the following features do vitamins C and E share?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

Which of the following conditions is known to lead to formation of mineral deposits in the blood vessels and kidney?

Correct AnswerverifiedShow Answer

Which of the following is a characteristic of carotenoids in foods?

Correct AnswerverifiedShow Answer

Which of the following is a characteristic of vitamin C and vitamin E?

Correct AnswerverifiedShow Answer

Which of the following is a feature of vitamin D?

Correct AnswerverifiedShow Answer

If the diet contains precursor vitamin A, which of the following tissues can use it to form vitamin A?

Correct AnswerverifiedShow Answer

Which of the following is a feature of vitamin K?

Correct AnswerverifiedShow Answer

Which of the following is a feature of vitamin E?

Correct AnswerverifiedShow Answer

Which of the following shows the highest vitamin D activity?

Correct AnswerverifiedShow Answer

The preferred unit of expression of vitamin A is the

Correct AnswerverifiedShow Answer

The animal version of vitamin D is known as

Correct AnswerverifiedShow Answer

What tissue contains the majority of the body's store of vitamin A?

Correct AnswerverifiedShow Answer

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