Question 1

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

Question 2

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

Question 3

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

Question 4

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

Question 5

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

Question 6

Which group is at risk for folate deficiency?

Accepted Answer

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

Question 7

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. 
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 8

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. 
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 9

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. 
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 10

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. 
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 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 
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

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

Question 13

A common adverse effect of niacin toxicity is:

Accepted Answer

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

Question 14

The process of adding nutrients to foods is called:

Accepted Answer

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

Question 15

Which food is the best source of folate?

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

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

Question 18

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

Question 19

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

Question 20

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

Exam 8: The Water-Soluble Vitamins

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

B6 deficiency does NOT cause:

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

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

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

Which group is at risk for folate deficiency?

Which statement is FALSE regarding pantothenic acid?

Which statement is NOT true?

Which is true regarding niacin?

Which statement about choline is correct?

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

Vitamin B6 is NOT involved in which physiologic process?

A common adverse effect of niacin toxicity is:

The process of adding nutrients to foods is called:

Which food is the best source of folate?

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

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:

Which lifestyle factor increases the requirement for vitamin C?

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

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

Nutrition: Food for Health

Digestion, Absorption, and Metabolism

Carbohydrates: Sugars, Starches, and Fibre

Lipids

Proteins and Amino Acids

Energy Balance and Weight Management

The Fat-Soluble Vitamins

Water and the Electrolytes

Major Minerals and Bone Health

The Trace Elements

Nutrition and Physical Activity

Nutrition During Pregnancy and Lactation

Nutrition From Infancy to Adolescence

Nutrition and Aging: the Adult Years

Food Safety

World Hunger and Malnutrition

Focus On Alcohol

Focus on Biotechnology

Focus On Eating Disorders

Focus On Phytochemicals

Focus on Supplements

Filters

B₆ deficiency does NOT cause:

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

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

Vitamin B₆ is NOT involved in which physiologic process?

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