Question 1

Which of the following statements is FALSE concerning vitamin C?

Accepted Answer

A)  Vitamin C is also known as ascorbic acid. 
B)  Vitamin C acts as an antioxidant that may help to reduce the risk of chronic diseases. 
C)  Vitamin C helps the immune system by enabling the body to make white blood cells. 
D)  Smokers should consume less vitamin C than non-smokers. 
A)  Vitamin C is also known as ascorbic acid. 
B)  Vitamin C acts as an antioxidant that may help to reduce the risk of chronic diseases. 
C)  Vitamin C helps the immune system by enabling the body to make white blood cells. 
D)  Smokers should consume less vitamin C than non-smokers.

Question 2

There is growing evidence that antioxidant supplements do NOT reduce our risk for CVD.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

Jane takes anticoagulant medication daily to prevent blood clots. Which vitamin must she avoid taking in excess of the RDA, as it could interact with the medication causing 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 5

Explain how free radicals are formed in the human body.

Accepted Answer

Stable atoms have an even number of elec

Question 6

The MOST critical role that vitamin A plays in the human body is

Accepted Answer

A)  maintaining a healthy reproductive system. 
B)  acting as an antioxidant and scavenging free radicals. 
C)  maintaining a healthy immune system. 
D)  maintaining healthy vision. 
A)  maintaining a healthy reproductive system. 
B)  acting as an antioxidant and scavenging free radicals. 
C)  maintaining a healthy immune system. 
D)  maintaining healthy vision.

Question 7

What is an exchange reaction?

Accepted Answer

A)  a reaction that produces free radicals 
B)  a two-part metabolic reaction that involves a loss and gain of electrons 
C)  the first stage of cancer development, in which a cell's DNA mutates 
D)  a reaction that converts a provitamin into the metabolically active form 
A)  a reaction that produces free radicals 
B)  a two-part metabolic reaction that involves a loss and gain of electrons 
C)  the first stage of cancer development, in which a cell's DNA mutates 
D)  a reaction that converts a provitamin into the metabolically active form

Question 8

Which of the following diseases has NOT been linked to free radical damage?

Accepted Answer

A)  cancer 
B)  heart disease 
C)  arthritis 
D)  type 1 diabetes 
A)  cancer 
B)  heart disease 
C)  arthritis 
D)  type 1 diabetes

Question 9

Which of the following is FALSE concerning carotenoids?

Accepted Answer

A)  Beta-carotene is the only carotenoid that functions as an antioxidant. 
B)  Cooking foods that contain dietary carotenoids enhances their absorption. 
C)  Fruits and vegetables can be rich sources of dietary carotenoids. 
D)  Consuming excess dietary beta-carotene can cause skin discoloration. 
A)  Beta-carotene is the only carotenoid that functions as an antioxidant. 
B)  Cooking foods that contain dietary carotenoids enhances their absorption. 
C)  Fruits and vegetables can be rich sources of dietary carotenoids. 
D)  Consuming excess dietary beta-carotene can cause skin discoloration.

Question 10

Vitamin A deficiency is a severe public health concern in developing nations, often resulting in blindness and death due to infection.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following minerals can function as an antioxidant?

Accepted Answer

A)  chromium 
B)  calcium 
C)  fluoride 
D)  selenium 
A)  chromium 
B)  calcium 
C)  fluoride 
D)  selenium

Exam 8: Nutrients Involved in Antioxidant Function

Which of the following statements is FALSE concerning vitamin C?

There is growing evidence that antioxidant supplements do NOT reduce our risk for CVD.

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

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

Explain how free radicals are formed in the human body.

The MOST critical role that vitamin A plays in the human body is

What is an exchange reaction?

Which of the following diseases has NOT been linked to free radical damage?

Which of the following is FALSE concerning carotenoids?

Vitamin A deficiency is a severe public health concern in developing nations, often resulting in blindness and death due to infection.

Which of the following minerals can function as an antioxidant?

The Role of Nutrition in Our 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 Involved in Bone Health

Nutrients Involved in Energy Metabolism and Blood Health

Achieving and Maintaining a Healthful Body Weight

Nutrition and Physical Activity: Keys to Good Health

Food Safety and Technology: Impact on Consumers

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

Nutrition Through the Life Cycle: Childhood to Late Adulthood

alcohol

cancer

cardiovascular Disease

diabetes

dietary Supplements: Necessity or Waste

disordered Eating

disorders Related to Specific Foods

the Fetal Environment: a Lasting Impression

fluid Imbalance

global Nutrition

obesity

osteoporosis

phytochemicals

searching for the Fountain of Youth

vitamins and Minerals: Micronutrients With Macro Powers

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