Question 1

Sulfur is a trace mineral that enhances the ability of insulin to transport glucose into the body's cells.

Accepted Answer

A) True 
 B)False

Question 2

Chromium assists in the transport of which of the following to the cells?

Accepted Answer

A)  calcium 
B)  sodium 
C)  potassium 
D)  glucose 
A)  calcium 
B)  sodium 
C)  potassium 
D)  glucose

Question 3

Why are dark green vegetables such as kale and spinach good sources of vitamin A?

Accepted Answer

A)  They contain the most abundant preformed vitamin A. 
B)  They are fortified with vitamin A. 
C)  They contain vitamin C, which boosts the absorption of vitamin A. 
D)  They contain abundant beta-carotene, a precursor of retinol. 
A)  They contain the most abundant preformed vitamin A. 
B)  They are fortified with vitamin A. 
C)  They contain vitamin C, which boosts the absorption of vitamin A. 
D)  They contain abundant beta-carotene, a precursor of retinol.

Question 4

MOST of the body's vitamin A is stored in the

Accepted Answer

A)  liver. 
B)  pancreas. 
C)  spleen. 
D)  large intestine. 
A)  liver. 
B)  pancreas. 
C)  spleen. 
D)  large intestine.

Question 5

Exposure to UV rays from the sun or a tanning bed promotes the production of free radicals.

Accepted Answer

A) True 
 B)False

Question 6

The acid form of vitamin A is retinal.

Accepted Answer

A) True 
 B)False

Question 7

To treat her moderate acne,Rita's dermatologist is most likely to give her a prescription for

Accepted Answer

A)  vitamin A supplements. 
B)  Retin-A. 
C)  Accutane. 
D)  Differin Gel 0.1%. 
A)  vitamin A supplements. 
B)  Retin-A. 
C)  Accutane. 
D)  Differin Gel 0.1%.

Question 8

Pellagra results from a deficiency of

Accepted Answer

A)  folate. 
B)  niacin. 
C)  thiamin. 
D)  riboflavin. 
A)  folate. 
B)  niacin. 
C)  thiamin. 
D)  riboflavin.

Question 9

Which of the following is NOT a key role of folate during embryonic development?

Accepted Answer

A)  DNA synthesis 
B)  maintenance of amniotic fluid 
C)  cell division 
D)  proper folding and closing of the neural tube 
A)  DNA synthesis 
B)  maintenance of amniotic fluid 
C)  cell division 
D)  proper folding and closing of the neural tube

Question 10

Which statement regarding thiamin is TRUE?

Accepted Answer

A)  Without thiamin, all amino acids become essential. 
B)  Most processed foods are excellent sources of thiamin. 
C)  Thiamin can quickly become toxic when consumed in excess. 
D)  Thiamin acts as a coenzyme in the metabolism of branched-chain amino acids. 
A)  Without thiamin, all amino acids become essential. 
B)  Most processed foods are excellent sources of thiamin. 
C)  Thiamin can quickly become toxic when consumed in excess. 
D)  Thiamin acts as a coenzyme in the metabolism of branched-chain amino acids.

Question 11

Rod cells use retinol from the bloodstream to

Accepted Answer

A)  transport visual messages to the brain. 
B)  replace the retinal lost during bleaching. 
C)  regenerate the protein iodopsin. 
D)  stabilize free radicals in the rod cell membrane. 
A)  transport visual messages to the brain. 
B)  replace the retinal lost during bleaching. 
C)  regenerate the protein iodopsin. 
D)  stabilize free radicals in the rod cell membrane.

Question 12

Jane takes anticoagulant medication daily to prevent blood clots.Which vitamin must she avoid taking in excess of the RDA because it could interact with the medication and cause uncontrollable bleeding?

Accepted Answer

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

Question 13

The B-vitamins play critical roles in protein and carbohydrate metabolism,but are only minimally important in fat metabolism.

Accepted Answer

A) True 
 B)False

Question 14

High concentrations of homocysteine in the blood are associated with the development of

Accepted Answer

A)  type 2 diabetes. 
B)  cardiovascular disease. 
C)  neural tube defects. 
D)  pellagra. 
A)  type 2 diabetes. 
B)  cardiovascular disease. 
C)  neural tube defects. 
D)  pellagra.

Question 15

Describe how vitamin A is involved in our ability to react to changes in the brightness of light and to see different colors.

Accepted Answer

Vitamin A is essential for our ability t

Question 16

Vitamin E deficiency causes xerophthalmia,a type of irreversible blindness due to hardening of the cornea.

Accepted Answer

A) True 
 B)False

Question 17

The light-sensitive pigment found in rod cells and formed by retinal and opsin is

Accepted Answer

A)  chlorophyll. 
B)  lutein. 
C)  rhodopsin. 
D)  tocotrienal. 
A)  chlorophyll. 
B)  lutein. 
C)  rhodopsin. 
D)  tocotrienal.

Question 18

Which of the following act as cofactors in antioxidant enzyme systems?

Accepted Answer

A)  antioxidant vitamins 
B)  antioxidant minerals 
C)  phytochemicals 
D)  probiotics 
A)  antioxidant vitamins 
B)  antioxidant minerals 
C)  phytochemicals 
D)  probiotics

Question 19

Carotenoids are better absorbed from cooked foods.

Accepted Answer

A) True 
 B)False

Question 20

Iodine's only function in the body is the synthesis of thyroid hormones.

Accepted Answer

A) True 
 B)False

Exam 8: Nutrients Essential to Key Body Functions

Sulfur is a trace mineral that enhances the ability of insulin to transport glucose into the body's cells.

Chromium assists in the transport of which of the following to the cells?

Why are dark green vegetables such as kale and spinach good sources of vitamin A?

MOST of the body's vitamin A is stored in the

Exposure to UV rays from the sun or a tanning bed promotes the production of free radicals.

The acid form of vitamin A is retinal.

To treat her moderate acne,Rita's dermatologist is most likely to give her a prescription for

Pellagra results from a deficiency of

Which of the following is NOT a key role of folate during embryonic development?

Which statement regarding thiamin is TRUE?

Rod cells use retinol from the bloodstream to

Jane takes anticoagulant medication daily to prevent blood clots.Which vitamin must she avoid taking in excess of the RDA because it could interact with the medication and cause uncontrollable bleeding?

The B-vitamins play critical roles in protein and carbohydrate metabolism,but are only minimally important in fat metabolism.

High concentrations of homocysteine in the blood are associated with the development of

Describe how vitamin A is involved in our ability to react to changes in the brightness of light and to see different colors.

Vitamin E deficiency causes xerophthalmia,a type of irreversible blindness due to hardening of the cornea.

The light-sensitive pigment found in rod cells and formed by retinal and opsin is

Which of the following act as cofactors in antioxidant enzyme systems?

Carotenoids are better absorbed from cooked foods.

Iodine's only function in the body is the synthesis of thyroid hormones.

Nutrition: Linking Food and Health

Designing a Healthful Diet

The Human Body: Are We Really What We Eat

Carbohydrates: Plant-Derived Energy Nutrients

Fats: Essential Energy-Supplying Nutrients

Proteins: Crucial Components of All Body Tissues

Nutrients Involved in Fluid and Electrolyte Balance

Nutrients Essential to Healthy Tissues

Achieving and Maintaining a Healthful Body Weight

Nutrition and Physical Activity: Keys to Good Health

Food Safety and Technology: Protecting Our Food

Food Equity,Sustainability,and Quality: The Challenge of Good Food

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

Nutrition Through the Lifecycle: Childhood to Late Adulthood

New Frontiers in Nutrition and Health

Healthful Eating Patterns

Disorders Related to Specific Foods

Diabetes

Cardiovascular Disease

Vitamins and Minerals: Micronutrients With Macro Powers

Alcohol

Cancer

Osteoporosis

Obesity

Disorders Related to Body Image, Eating, and Exercise

The Safety and Effectiveness of Dietary Supplements

Malnutrition

The Fetal Environment

Searching for the Fountain of Youth

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