Question 1. What is the antioxidant enzyme system that functions by removing hydrogen peroxide from the body by converting it into water and oxygen?

• Superoxide dismutase
• Catalase
• Glutathione peroxidase
• Microsomal enzyme-oxidizing system

Question 2.  Which of the following are required components of antioxidant enzyme systems?

• Antioxidant minerals
• Antioxidant vitamins
• Phytochemicals
• Gastrointestinal microflora

Question 3.  About 90% of vitamin E is stored in:

• adipose tissue.
• the liver.
• cell membranes.
• the skin.

Question 4.  Diseases that cause the malabsorption of fat can result in a deficiency of:

• Vitamin A.
• Vitamin E.
• Vitamin C.
• Both answers: Vitamin A and Vitamin E.

Question 5.  Which of the following nutrients requires the most frequent consumption to assure adequate body stores?

• Vitamin A
• Vitamin E
• Vitamin C
• Beta-carotene

Question 6. The retinoid that has the most important physiological role in the human body is:

• retinol.
• retinoic acid.
• retinal.
• beta-carotene.

Question 7. Which of the following is the most abundant mineral in our bodies?

• Calcium
• Iron
• Phosphorus
• Fluoride

Question 8.  Individuals who have diseases that result in the malabsorption of ________ are at risk for a Vitamin D deficiency.

• carbohydrates
• fat
• minerals
• protein

Question 9. What is the primary symptom of niacin toxicity?

• Dizziness
• Diarrhea
• Fatigue
• Flushing

Question 10. The primary role of the B-complex vitamins is to:

• provide the body with energy.
• act as coenzymes.
• maintain and repair body tissues.
• maintain acid-base balance.