Question 1

Which of the following is a characteristic of vitamin D nutrition?

Accepted Answer

A) Vitamin D deficiency may be created by a calcium deficiency 
B) Only about one-half of the world's population relies on sunlight to maintain adequate vitamin D nutrition 
C) Prolonged exposure to sunlight degrades the vitamin D precursor in skin,thus preventing vitamin D toxicity 
D) In people living in northern U.S.cities,vitamin D stores from synthesis during the summer are usually sufficient to meet the needs during the winter 
A) Vitamin D deficiency may be created by a calcium deficiency 
B) Only about one-half of the world's population relies on sunlight to maintain adequate vitamin D nutrition 
C) Prolonged exposure to sunlight degrades the vitamin D precursor in skin,thus preventing vitamin D toxicity 
D) In people living in northern U.S.cities,vitamin D stores from synthesis during the summer are usually sufficient to meet the needs during the winter

Question 2

Which of the following vitamins is synthesized by intestinal bacteria?

Accepted Answer

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

Question 3

The main function of vitamin E in the body is to act as a(n)

Accepted Answer

A) peroxide. 
B) coenzyme. 
C) antioxidant. 
D) free radical. 
A) peroxide. 
B) coenzyme. 
C) antioxidant. 
D) free radical.

Question 4

Which of the following is a property of the fat-soluble vitamins?

Accepted Answer

A) Most of them are synthesized by intestinal bacteria 
B) Intestinal transport occurs by way of the portal circulation 
C) Deficiency symptoms may take years to develop on a poor diet 
D) Toxicity risk is higher for vitamins E and K than for other fat-soluble vitamins 
A) Most of them are synthesized by intestinal bacteria 
B) Intestinal transport occurs by way of the portal circulation 
C) Deficiency symptoms may take years to develop on a poor diet 
D) Toxicity risk is higher for vitamins E and K than for other fat-soluble vitamins

Question 5

In which of the following individuals would vitamin A toxicity be most likely to occur?

Accepted Answer

A) Adolescent women 
B) Overweight adults 
C) Those taking vitamin A supplements 
D) Those consuming more than 100 g of carrots daily 
A) Adolescent women 
B) Overweight adults 
C) Those taking vitamin A supplements 
D) Those consuming more than 100 g of carrots daily

Question 6

To convert the number of tocopherol equivalents to alpha-tocopherol,multiply by the factor

Accepted Answer

A) 0.8. 
B) 1.4. 
C) 2.0. 
D) 3.3. 
A) 0.8. 
B) 1.4. 
C) 2.0. 
D) 3.3.

Question 7

In what system would the effects of a vitamin D deficiency be most readily observed?

Accepted Answer

A) Nervous 
B) Skeletal 
C) Muscular 
D) Circulatory 
A) Nervous 
B) Skeletal 
C) Muscular 
D) Circulatory

Question 8

Which of the following is associated with the condition known as xerosis?

Accepted Answer

A) Toxicity of vitamin A 
B) Toxicity of beta-carotene 
C) Deficiency of vitamin A 
D) Deficiency of vitamin D 
A) Toxicity of vitamin A 
B) Toxicity of beta-carotene 
C) Deficiency of vitamin A 
D) Deficiency of vitamin D

Question 9

Which of the following is a feature of vitamin D?

Accepted Answer

A) Toxicity from vitamin D may result from overexposure to the sun 
B) Requirements are much higher in the elderly due to degenerative bone diseases 
C) Fortification of milk with the vitamin is common in order to provide people with a reliable source 
D) Absorption from most food sources is very poor,necessitating the enrichment of grain products 
A) Toxicity from vitamin D may result from overexposure to the sun 
B) Requirements are much higher in the elderly due to degenerative bone diseases 
C) Fortification of milk with the vitamin is common in order to provide people with a reliable source 
D) Absorption from most food sources is very poor,necessitating the enrichment of grain products

Question 10

Which of the following is likely to induce vitamin A toxicity in adults?

Accepted Answer

A) Eating beef liver once a month 
B) Consuming high-dose vitamin A supplements 
C) Drinking 2 quarts of vitamin A-fortified milk daily 
D) Consuming large amounts of dark green and deep orange vegetables 
A) Eating beef liver once a month 
B) Consuming high-dose vitamin A supplements 
C) Drinking 2 quarts of vitamin A-fortified milk daily 
D) Consuming large amounts of dark green and deep orange vegetables

Question 11

What is a free radical?

Accepted Answer

A) An antioxidant substance that prevents accumulation of cell-damaging oxides 
B) A substance in food that interacts with nutrients to decrease their utilization 
C) A nutrient in excess of body needs that the body is free to degrade with no consequence 
D) A molecule that is unstable and highly reactive because it contains unpaired electrons 
A) An antioxidant substance that prevents accumulation of cell-damaging oxides 
B) A substance in food that interacts with nutrients to decrease their utilization 
C) A nutrient in excess of body needs that the body is free to degrade with no consequence 
D) A molecule that is unstable and highly reactive because it contains unpaired electrons

Question 12

Why shouldn't a woman who is 7 months pregnant be prescribed Accutane?

Accepted Answer

A) It may aggravate existing edema 
B) It may lead to prolongation of labor 
C) It is a teratogen and can be harmful to the baby 
D) It contains high concentrations of vitamin D that can cause birth defects 
A) It may aggravate existing edema 
B) It may lead to prolongation of labor 
C) It is a teratogen and can be harmful to the baby 
D) It contains high concentrations of vitamin D that can cause birth defects

Question 13

What form of vitamin A supports reproduction but not growth?

Accepted Answer

A) Retinal 
B) Retinol 
C) Retinoic acid 
D) Retinyl esters 
A) Retinal 
B) Retinol 
C) Retinoic acid 
D) Retinyl esters

Question 14

Which of the following foods is a very good source of vitamin A?

Accepted Answer

A) Corn 
B) Pumpkin pie 
C) Baked potato 
D) Whole-grain bread 
A) Corn 
B) Pumpkin pie 
C) Baked potato 
D) Whole-grain bread

Question 15

Approximately what percentage of the body's vitamin A stores are found in the liver?

Accepted Answer

A) 20 
B) 50 
C) 70 
D) 90 
A) 20 
B) 50 
C) 70 
D) 90

Question 16

Which vitamin is routinely given as a single dose to newborns?

Accepted Answer

A) Vitamin A 
B) Vitamin E 
C) Vitamin K 
D) Vitamin B12 
A) Vitamin A 
B) Vitamin E 
C) Vitamin K 
D) Vitamin B12

Question 17

Substances that promote oxidation are usually termed

Accepted Answer

A) prooxidants. 
B) antioxidants. 
C) free radical generators. 
D) reactive electron oxidants. 
A) prooxidants. 
B) antioxidants. 
C) free radical generators. 
D) reactive electron oxidants.

Question 18

Which of the following provides the least amount of precursor vitamin A?

Accepted Answer

A) Corn 
B) Spinach 
C) Carrots 
D) Cantaloupe 
A) Corn 
B) Spinach 
C) Carrots 
D) Cantaloupe

Question 19

What is prothrombin?

Accepted Answer

A) A storage protein for vitamin K 
B) A transport protein for vitamin E 
C) A protein needed for bone formation 
D) A protein needed for blood clot formation 
A) A storage protein for vitamin K 
B) A transport protein for vitamin E 
C) A protein needed for bone formation 
D) A protein needed for blood clot formation

Question 20

Which of the following is a characteristic of vitamin K nutrition?

Accepted Answer

A) Deficiency may lead to hemophilia 
B) Toxicity may increase risk for hemophilia 
C) Absorption is inhibited when bile production diminishes 
D) Supplements are highly effective against osteoporosis 
A) Deficiency may lead to hemophilia 
B) Toxicity may increase risk for hemophilia 
C) Absorption is inhibited when bile production diminishes 
D) Supplements are highly effective against osteoporosis

Which of the following is a characteristic of vitamin D nutrition?

Which of the following vitamins is synthesized by intestinal bacteria?

The main function of vitamin E in the body is to act as a(n)

Which of the following is a property of the fat-soluble vitamins?

In which of the following individuals would vitamin A toxicity be most likely to occur?

To convert the number of tocopherol equivalents to alpha-tocopherol,multiply by the factor

In what system would the effects of a vitamin D deficiency be most readily observed?

Which of the following is associated with the condition known as xerosis?

Which of the following is a feature of vitamin D?

Which of the following is likely to induce vitamin A toxicity in adults?

What is a free radical?

Why shouldn't a woman who is 7 months pregnant be prescribed Accutane?

What form of vitamin A supports reproduction but not growth?

Which of the following foods is a very good source of vitamin A?

Approximately what percentage of the body's vitamin A stores are found in the liver?

Which vitamin is routinely given as a single dose to newborns?

Substances that promote oxidation are usually termed

Which of the following provides the least amount of precursor vitamin A?

What is prothrombin?

Which of the following is a characteristic of vitamin K nutrition?

An Overview of Nutrition

Planning a Healthy Diet

Digestion, absorption, and Transport

The Carbohydrates: Sugars, starches, and Fibers

The Lipids: Triglycerides, phospholipids, and Sterols

Protein: Amino Acids

Energy Metabolism

Energy Balance and Body Composition

Weight Management: Overweight, obesity, and Underweight

The Water-Soluble Vitamins: B Vitamins and Vitamin C

Water and the Major Minerals

The Trace Minerals

Fitness: Physical Activity, nutrients, and Body Adaptations

Life Cycle Nutrition: Pregnancy and Lactation

Life Cycle Nutrition: Infancy, childhood, and Adolescence

Life Cycle Nutrition: Adulthood and the Later Years

Diet and Health

Consumer Concerns About Foods and Water

Hunger and the Global Environment

Filters

Exam 11: The Fat-Soluble Vitamins: A, d, e, and K

Which of the following is a characteristic of vitamin D nutrition?

Which of the following vitamins is synthesized by intestinal bacteria?

The main function of vitamin E in the body is to act as a(n)

Which of the following is a property of the fat-soluble vitamins?

In which of the following individuals would vitamin A toxicity be most likely to occur?

To convert the number of tocopherol equivalents to alpha-tocopherol,multiply by the factor

In what system would the effects of a vitamin D deficiency be most readily observed?

Which of the following is associated with the condition known as xerosis?

Which of the following is a feature of vitamin D?

Which of the following is likely to induce vitamin A toxicity in adults?

What is a free radical?

Why shouldn't a woman who is 7 months pregnant be prescribed Accutane?

What form of vitamin A supports reproduction but not growth?

Which of the following foods is a very good source of vitamin A?

Approximately what percentage of the body's vitamin A stores are found in the liver?

Which vitamin is routinely given as a single dose to newborns?

Substances that promote oxidation are usually termed

Which of the following provides the least amount of precursor vitamin A?

What is prothrombin?

Which of the following is a characteristic of vitamin K nutrition?

An Overview of Nutrition

Planning a Healthy Diet

Digestion, absorption, and Transport

The Carbohydrates: Sugars, starches, and Fibers

The Lipids: Triglycerides, phospholipids, and Sterols

Protein: Amino Acids

Energy Metabolism

Energy Balance and Body Composition

Weight Management: Overweight, obesity, and Underweight

The Water-Soluble Vitamins: B Vitamins and Vitamin C

Water and the Major Minerals

The Trace Minerals

Fitness: Physical Activity, nutrients, and Body Adaptations

Life Cycle Nutrition: Pregnancy and Lactation

Life Cycle Nutrition: Infancy, childhood, and Adolescence

Life Cycle Nutrition: Adulthood and the Later Years

Diet and Health

Consumer Concerns About Foods and Water

Hunger and the Global Environment

Filters