Question 1

A primary function of thiamin is to:

Accepted Answer

A) increase iron incorporation into hemoglobin. 
B) regulate cell differentiation. 
C) promote blood clotting. 
D) facilitate the production of energy from glucose. 
A) increase iron incorporation into hemoglobin. 
B) regulate cell differentiation. 
C) promote blood clotting. 
D) facilitate the production of energy from glucose. D

Question 2

Pellagra occurs when _________ is the staple grain in the diet and the diet does not provide a mixture of different foods.

Accepted Answer

A) corn 
B) wheat 
C) rice 
D) barley 
A) corn 
B) wheat 
C) rice 
D) barley A

Question 3

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. D

Question 4

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 5

Which is the FALSE statement regarding biotin?

Accepted Answer

A) Biotin functions in the metabolism of some amino acids. 
B) An RDA for biotin has not been determined. 
C) Biotin is produced by enzymes in epithelial cells that line the small intestine. 
D) People on tube feedings may become deficient. 
A) Biotin functions in the metabolism of some amino acids. 
B) An RDA for biotin has not been determined. 
C) Biotin is produced by enzymes in epithelial cells that line the small intestine. 
D) People on tube feedings may become deficient.

Question 6

Vitamin C deficiency causes:

Accepted Answer

A) bleeding gums. 
B) hemolysis. 
C) pernicious anemia. 
D) megaloblastic anemia. 
A) bleeding gums. 
B) hemolysis. 
C) pernicious anemia. 
D) megaloblastic anemia.

Question 7

Which statement concerning vitamins is incorrect?

Accepted Answer

A) Vitamins are organic compounds. 
B) If a vitamin is not provided by the diet,the body will synthesize it. 
C) The vitamin content of a food may be affected by cooking and processing. 
D) Vitamins are essential for growth,reproduction and health. 
A) Vitamins are organic compounds. 
B) If a vitamin is not provided by the diet,the body will synthesize it. 
C) The vitamin content of a food may be affected by cooking and processing. 
D) Vitamins are essential for growth,reproduction and health.

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

Niacin supplements:

Accepted Answer

A) are commonly used in the US since niacin deficiency is a public health concern. 
B) provide an essential energy boost. 
C) may decrease LDL cholesterol and increase HDL cholesterol. 
D) are associated with an increase in heart attacks. 
A) are commonly used in the US since niacin deficiency is a public health concern. 
B) provide an essential energy boost. 
C) may decrease LDL cholesterol and increase HDL cholesterol. 
D) are associated with an increase in heart attacks.

Question 10

Which statement regarding fortification of foods in the U.S.is NOT true?

Accepted Answer

A) Fortification is always regulated by the FDA. 
B) Fortification can be an arbitrary act of the food manufacturer. 
C) Fortification can lead to nutrient imbalances and toxicities. 
D) Fortification of juice can help individuals meet their daily calcium requirement. 
A) Fortification is always regulated by the FDA. 
B) Fortification can be an arbitrary act of the food manufacturer. 
C) Fortification can lead to nutrient imbalances and toxicities. 
D) Fortification of juice can help individuals meet their daily calcium requirement.

Question 11

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 12

Which group of people is most at risk for developing thiamin deficiency?

Accepted Answer

A) Tobacco users 
B) Endurance athletes 
C) Older adults 
D) Chronic alcoholics 
A) Tobacco users 
B) Endurance athletes 
C) Older adults 
D) Chronic alcoholics

Question 13

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 14

Another name for vitamin B6 is:

Accepted Answer

A) pantothenic acid. 
B) biotin. 
C) pyruvate. 
D) pyridoxine. 
A) pantothenic acid. 
B) biotin. 
C) pyruvate. 
D) pyridoxine.

Question 15

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 16

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 17

The RDA for B6 in adults ____________ with aging.

Accepted Answer

A) increases 
B) decreases 
C) stays the same 
D) increases for males but decreases for females 
A) increases 
B) decreases 
C) stays the same 
D) increases for males but decreases for females

Question 18

Riboflavin is most easily destroyed when exposed to:

Accepted Answer

A) light. 
B) vitamin C. 
C) oxygen. 
D) acid. 
A) light. 
B) vitamin C. 
C) oxygen. 
D) acid.

Question 19

Which is the FALSE statement regarding vitamin C?

Accepted Answer

A) Vitamin C may decrease the duration of the common cold. 
B) People prone to developing certain types of kidney stones should avoid vitamin C supplementation. 
C) Vitamin C is efficiently stored in the liver,so deficiency symptoms take weeks or months to develop. 
D) Vitamin C supplements are unlikely to cause toxicity. 
A) Vitamin C may decrease the duration of the common cold. 
B) People prone to developing certain types of kidney stones should avoid vitamin C supplementation. 
C) Vitamin C is efficiently stored in the liver,so deficiency symptoms take weeks or months to develop. 
D) Vitamin C supplements are unlikely to cause toxicity.

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

Exam 8: The Water-Soluble Vitamins

A primary function of thiamin is to:

Pellagra occurs when _________ is the staple grain in the diet and the diet does not provide a mixture of different foods.

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

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

Which is the FALSE statement regarding biotin?

Vitamin C deficiency causes:

Which statement concerning vitamins is incorrect?

Which statement is NOT true?

Niacin supplements:

Which statement regarding fortification of foods in the U.S.is NOT true?

The process of adding nutrients to foods is called:

Which group of people is most at risk for developing thiamin deficiency?

Which statement about choline is correct?

Another name for vitamin B6 is:

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

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

The RDA for B6 in adults ____________ with aging.

Riboflavin is most easily destroyed when exposed to:

Which is the FALSE statement regarding vitamin C?

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

Nutrition: Food for Health

Nutrition Guidelines: Applying the Science of Nutrition

Digestion, absorption, and Metabolism

Carbohydrates: Sugars, starches, and Fiber

Lipids: Triglycerides, phospholipids, and Cholesterol

Proteins and Amino Acids

Energy Balance and Weight Management

The Fat-Soluble Vitamins

Water and the Electrolytes

Major Minerals and Bone Health

The Trace Minerals

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 Eating Disorders

Focus On Phytochemicals

Focus on Nonvitamin/Nonmineral Supplements

Focus on Biotechnology

Filters

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

Another name for vitamin B₆ is:

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

The RDA for B₆in adults ____________ with aging.