Question 1

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 2

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 3

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 4

The process of adding nutrients to foods is called:

Accepted Answer

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

Question 5

Which food is the best source of folate?

Accepted Answer

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

Question 6

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 7

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 8

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 9

A common adverse effect of niacin toxicity is:

Accepted Answer

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

Question 10

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 11

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 12

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.

Question 13

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 14

Which group is at risk for folate deficiency?

Accepted Answer

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

Question 15

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 16

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 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

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 19

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 20

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.

Exam 8: The Water-Soluble Vitamins

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

B6 deficiency does NOT cause:

Correct AnswerverifiedShow Answer

Which statement about choline is correct?

Correct AnswerverifiedShow Answer

Which statement is FALSE regarding pantothenic acid?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Vitamin B6 is NOT involved in which physiologic process?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which statement is NOT true?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A common adverse effect of niacin toxicity is:

Correct AnswerverifiedShow Answer

The process of adding nutrients to foods is called:

Correct AnswerverifiedShow Answer

Which group is at risk for folate deficiency?

Correct AnswerverifiedShow Answer

Which lifestyle factor increases the requirement for vitamin C?

Correct AnswerverifiedShow Answer

Which is true regarding niacin?

Correct AnswerverifiedShow Answer

Which food is the best source of folate?

Correct AnswerverifiedShow Answer

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:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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B₆ deficiency does NOT cause:

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

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

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