Question 1

Vitamin E is added to many oil-based skin care products because:

Accepted Answer

A) it prevents oxidation in these products. 
B) it has an additive affect on the function of the products. 
C) it is an inactive filler. 
D) it improves the smell and texture of the products. 
A) it prevents oxidation in these products. 
B) it has an additive affect on the function of the products. 
C) it is an inactive filler. 
D) it improves the smell and texture of the products.

Question 2

Vitamin A is transported through the bloodstream to target tissues and cells with the assistance of ________.

Accepted Answer

A) retinol-binding protein 
B) prooxidants 
C) anticoagulants 
D) tocopherols 
A) retinol-binding protein 
B) prooxidants 
C) anticoagulants 
D) tocopherols

Question 3

Which water-soluble vitamin can regenerate vitamin E after it has been oxidized?

Accepted Answer

A) vitamin D 
B) vitamin B₁₂ 
C) vitamin C 
D) folate 
A) vitamin D 
B) vitamin B₁₂ 
C) vitamin C 
D) folate

Question 4

Research suggests that vitamin C supplements taken daily can reduce the incidence of the common cold.

Accepted Answer

A) True 
 B)False

Question 5

Foods in which beta-carotene is used as a coloring agent have a significant amount of dietary beta-carotene.

Accepted Answer

A) True 
 B)False

Question 6

Growing evidence of the past two decades indicates that ________ does not reduce cancer risk.

Accepted Answer

A) antioxidant supplementation 
B) reducing exposure to UV rays 
C) antioxidants consumed in foods 
D) increasing physical activity 
A) antioxidant supplementation 
B) reducing exposure to UV rays 
C) antioxidants consumed in foods 
D) increasing physical activity

Question 7

Vitamin E improves vitamin A's absorption by the body.

Accepted Answer

A) True 
 B)False

Question 8

Discuss how retinal is absorbed and transported in the body.What is its role in healthy vision and immune function?

Accepted Answer

Retinal, also known as vitamin A aldehyd

Question 9

Which of the following is a function of carotenoids?

Accepted Answer

A) produces thyroxine 
B) activate the glutathione peroxidase enzyme system 
C) supports the immune system 
D) increases cellular metabolic rate 
A) produces thyroxine 
B) activate the glutathione peroxidase enzyme system 
C) supports the immune system 
D) increases cellular metabolic rate

Question 10

Beta-carotene is a hydrophobic compound.

Accepted Answer

A) True 
 B)False

Question 11

Foods that use beta-carotene as a natural coloring agent:

Accepted Answer

A) generally must be processed heavily. 
B) are not significant sources of beta-carotene. 
C) are largely foods with a high fat content. 
D) also acquire a distinctive taste. 
A) generally must be processed heavily. 
B) are not significant sources of beta-carotene. 
C) are largely foods with a high fat content. 
D) also acquire a distinctive taste.

Question 12

The reason most fast foods don't contain much vitamin E is because:

Accepted Answer

A) they have too much fat content. 
B) heating vegetable oils destroys vitamin E. 
C) vitamin E cannot be present in cooking oils. 
D) vitamin E-containing foods are best cooked slowly. 
A) they have too much fat content. 
B) heating vegetable oils destroys vitamin E. 
C) vitamin E cannot be present in cooking oils. 
D) vitamin E-containing foods are best cooked slowly.

Question 13

People who regularly consume fruits and vegetables have a reduced risk for CVD.

Accepted Answer

A) True 
 B)False

Question 14

Choose one antioxidant vitamin or mineral and describe its antioxidant mechanism of action.

Accepted Answer

One antioxidant vitamin that is importan

Question 15

Beta-carotene has no known essential role in the body.Therefore,an RDA has not been established.

Accepted Answer

A) True 
 B)False

Question 16

The deficiency disease associated with vitamin C is:

Accepted Answer

A) scurvy. 
B) erythrocyte hemolysis. 
C) night blindness. 
D) Keshan disease. 
A) scurvy. 
B) erythrocyte hemolysis. 
C) night blindness. 
D) Keshan disease.

Question 17

The gaining of electrons by an atom during metabolism is called:

Accepted Answer

A) oxidation. 
B) reduction. 
C) radiation. 
D) mineralization. 
A) oxidation. 
B) reduction. 
C) radiation. 
D) mineralization.

Question 18

Which of the following increases the RDA for vitamin C?

Accepted Answer

A) smoking cigarettes 
B) drinking alcohol 
C) following a vegan diet 
D) taking vitamin C supplements 
A) smoking cigarettes 
B) drinking alcohol 
C) following a vegan diet 
D) taking vitamin C supplements

Question 19

Which of the following are rich sources of vitamin C?

Accepted Answer

A) milk and cheese 
B) seafood 
C) wheat and oats 
D) green and red peppers 
A) milk and cheese 
B) seafood 
C) wheat and oats 
D) green and red peppers

Question 20

Define a free radical.List and discuss at least three factors that are attributed to free radical formation.

Accepted Answer

A free radical is a highly reactive and

Exam 14: Nutrients Involved in Antioxidant Function and Vision

Vitamin E is added to many oil-based skin care products because:

Vitamin A is transported through the bloodstream to target tissues and cells with the assistance of ________.

Which water-soluble vitamin can regenerate vitamin E after it has been oxidized?

Research suggests that vitamin C supplements taken daily can reduce the incidence of the common cold.

Foods in which beta-carotene is used as a coloring agent have a significant amount of dietary beta-carotene.

Growing evidence of the past two decades indicates that ________ does not reduce cancer risk.

Vitamin E improves vitamin A's absorption by the body.

Discuss how retinal is absorbed and transported in the body.What is its role in healthy vision and immune function?

Which of the following is a function of carotenoids?

Beta-carotene is a hydrophobic compound.

Foods that use beta-carotene as a natural coloring agent:

The reason most fast foods don't contain much vitamin E is because:

People who regularly consume fruits and vegetables have a reduced risk for CVD.

Choose one antioxidant vitamin or mineral and describe its antioxidant mechanism of action.

Beta-carotene has no known essential role in the body.Therefore,an RDA has not been established.

The deficiency disease associated with vitamin C is:

The gaining of electrons by an atom during metabolism is called:

Which of the following increases the RDA for vitamin C?

Which of the following are rich sources of vitamin C?

Define a free radical.List and discuss at least three factors that are attributed to free radical formation.

The Science of Nutrition: Linking Food, function, and Health

Designing a Healthful Diet

The Human Body: Are We Really What We Eat

Carbohydrates: Plant-Derived Energy Nutrients

in Depth: Alcohol

Lipids: Essential Energy-Supplying Nutrients

Vitamins and Minerals: Micronutrients With Macro Powers

Phytochemicals

Disordered Eating

Proteins: Crucial Components of All Body Tissues

Metabolism: From Food to Life

Nutrients Involved in Energy Metabolism

Nutrients Involved in Fluid and Electrolyte Balance

Nutrients Involved in Bone Health

Nutrients Involved in Blood Health and Immunity

Achieving and Maintaining a Healthful Body Weight

Nutrition and Physical Activity: Keys to Good Health

Consumer Issues: Food Safety, Production, and Impact on the Environment

Nutrition Through the Life Cycle: Pregnancy and the First Year of Life

Nutrition Through the Life Cycle: Childhood and Adolescence

Nutrition Through the Life Cycle: The Later Years

Global Nutrition

Filters