SCI228 Week 5 quiz 2017

Question

Question 1.1. (TCO 3) What is an exchange reaction? (Points : 2)

A reaction that produces free radicals

A two-part metabolic reaction that includes oxidation and reduction steps

The first stage of cancer development, in which a cell's DNA mutates

A reaction that converts a provitamin into the metabolically active form

Question 2.2. (TCO 3) Carbon and hydrogen are two examples of: (Points : 2)

atoms.

antioxidants.

electrons.

nuclei.

Question 3.3. (TCO 7) The most powerful and abundant form of vitamin E is: (Points : 2)

alpha-tocopherol.

beta-tocopherol.

gamma-tocopherol.

delta-tocopherol.

Question 4.4. (TCO 7) The deficiency disease associated with Vitamin C is: (Points : 2)

scurvy.

erythrocyte hemolysis.

night blindness.

Keshan disease.

Question 5.5. (TCO 7) Which of the following nutrients requires the most frequent consumption to assure adequate body stores? (Points : 2)

Vitamin A

Vitamin E

Vitamin C

Beta-carotene

Question 6.6. (TCO 8) Which of the following foods would be the best dietary source of pre-formed Vitamin A? (Points : 2)

Carrots

Egg

Cantaloupe

Rice

Question 7.7. (TCO 8) The phytochemical found in tomatoes and tomato products is: (Points : 2)

lycopene.

flavonoids.

phytoestrogens.

polyphenols.

Question 8.8. (TCO 8) Which of the following is our primary dietary source of Vitamin D? (Points : 2)

Seafood

Chicken

Green leafy vegetables

Milk

Question 9.9. (TCO 9) Mary G. is 60 years old and at risk for osteoporosis. Which of the following dietary supplements would be the MOST helpful to minimize bone loss? (Points : 2)

Magnesium and fluoride

Vitamin K and fluoride

Calcium and phosphorus

Calcium and Vitamin D

Question 10.10. (TCO 9) The chronic overconsumption of ________ can result in a biotin deficiency. (Points : 2)

herbal tea

raw egg whites

natural licorice

grapefruit juice