Question 1

Vitamin B6 status is affected by all of the following EXCEPT:

Accepted Answer

A)  the amount of fat in the diet.
B)  oral contraceptives.
C)  exposure of food to heat and light.
D)  alcohol ingestion.

Question 2

Which statement is NOT true?

Accepted Answer

A)  Vitamins provide energy.
B)  Deficiency of a fat-soluble vitamin is less likely than of a typical water-soluble vitamin.
C)  Vitamins are necessary in many biochemical reactions in the body.
D)  Vitamin deficiencies are rare in the United States.

Question 3

Which food is the best source of folate?

Accepted Answer

A)  Lentils
B)  Chicken
C)  Cheese
D)  Brown rice

Question 4

The process of adding nutrients to foods is called:

Accepted Answer

A)  enrichment.
B)  fortification.
C)  milling.
D)  supplementation.

Question 5

Which is true regarding niacin?

Accepted Answer

A)  It can be synthesized in the body from the amino acid tryptophan.
B)  Eggs are a good source of preformed niacin.
C)  The niacin deficiency disease is beriberi.
D)  Corn has a protective effect against niacin deficiencies.

Question 6

Which B vitamin decreases the risk of neural tube defects in developing babies?

Accepted Answer

A)  Riboflavin
B)  Biotin
C)  B12
D)  Folic acid

Question 7

A common adverse effect of niacin toxicity is:

Accepted Answer

A)  dermatitis.
B)  flushing of the skin.
C)  dementia.
D)  hives.

Question 8

Meeting vitamin B12 needs from the diet is especially difficult for:

Accepted Answer

A)  athletes undergoing rigorous training.
B)  infants.
C)  vegans.
D)  pregnant women.

Question 9

Which statement about choline is correct?

Accepted Answer

A)  It has no identified,important roles in normal homeostasis.
B)  It is classified as a vitamin since it cannot be synthesized in the body.
C)  Deficiency causes kidney problems.
D)  There is an established UL for choline intake due to toxicity symptoms.

Question 10

Vitamin B6 is NOT involved in which physiologic process?

Accepted Answer

A)  Formation of non-essential amino acids
B)  Hemoglobin synthesis
C)  Collagen formation
D)  Formation of white blood cells important for immunity

Question 11

Which group is LEAST at risk for developing vitamin C deficiency?

Accepted Answer

A)  Adults who consume plenty of fruits and vegetables
B)  Infants fed cows' milk
C)  Alcoholics
D)  Elderly people consuming nutrient poor diets

Question 12

Which statement is FALSE regarding pantothenic acid?

Accepted Answer

A)  Deficiency has been associated with consumption of raw eggs.
B)  It is found only in a few select foods.
C)  Toxicity is a concern due to food enrichment in the U.S.
D)  All of the above are false.

Question 13

Which lifestyle factor increases the requirement for vitamin C?

Accepted Answer

A)  Drinking alcohol
B)  Exercising frequently and intensely
C)  Smoking cigarettes
D)  Eating a diet high in fiber

Question 14

Absorption of vitamin B12 is dependent upon all of the following EXCEPT:

Accepted Answer

A)  adequate stomach acid.
B)  pepsin.
C)  intrinsic factor.
D)  amylase.

Question 15

The role of folate in DNA synthesis makes it particularly important in:

Accepted Answer

A)  lipid synthesis.
B)  rapidly dividing cells.
C)  nerve cells.
D)  old age.

Question 16

Which of the following is NOT recognized as a major function of vitamin C in the body?

Accepted Answer

A)  Formation of collagen
B)  Facilitating release of energy from glucose
C)  Protection against damage from free radicals
D)  Enhancing iron absorption

Question 17

B6 deficiency does NOT cause:

Accepted Answer

A)  neurological symptoms.
B)  numbness in the extremities.
C)  anemia with large,deeply colored red blood cells.
D)  decreased antibody formation.

Question 18

Vitamins may be lost when food is processed.When these vitamins are added back to the processed food at the same or higher level,the food is said to be:

Accepted Answer

A)  enhanced.
B)  fortified.
C)  enriched.
D)  supplemented.

Question 19

Which group is at risk for folate deficiency?

Accepted Answer

A)  Premature infants
B)  Elderly
C)  Smokers
D)  All of the above

Question 20

Biotin is tightly bound by avidin,which prevents absorption of the vitamin.Avidin is commonly found in:

Accepted Answer

A)  egg whites.
B)  kidney beans.
C)  peanuts.
D)  spinach.

Exam 8: The Water-Soluble Vitamins

Meeting vitamin B12 needs from the diet is especially difficult for:

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Which lifestyle factor increases the requirement for vitamin C?

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Which statement is FALSE regarding pantothenic acid?

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Vitamin B6 status is affected by all of the following EXCEPT:

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Which group is at risk for folate deficiency?

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Biotin is tightly bound by avidin,which prevents absorption of the vitamin.Avidin is commonly found in:

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Which B vitamin decreases the risk of neural tube defects in developing babies?

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Which food is the best source of folate?

Correct AnswerverifiedShow Answer

Vitamin B6 is NOT involved in which physiologic process?

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Which statement is NOT true?

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Which group is LEAST at risk for developing vitamin C deficiency?

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The role of folate in DNA synthesis makes it particularly important in:

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Which statement about choline is correct?

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Which is true regarding niacin?

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Vitamins may be lost when food is processed.When these vitamins are added back to the processed food at the same or higher level,the food is said to be:

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A common adverse effect of niacin toxicity is:

Correct AnswerverifiedShow Answer

Absorption of vitamin B12 is dependent upon all of the following EXCEPT:

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The process of adding nutrients to foods is called:

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Which of the following is NOT recognized as a major function of vitamin C in the body?

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B6 deficiency does NOT cause:

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Meeting vitamin B₁₂ needs from the diet is especially difficult for:

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Vitamin B₆ status is affected by all of the following EXCEPT:

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Vitamin B₆ is NOT involved in which physiologic process?

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Absorption of vitamin B₁₂ is dependent upon all of the following EXCEPT:

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B₆ deficiency does NOT cause:

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