Chapter 8 quiz Nutrition Issues

question

Which of the following cooking methods will likely destroy the MOST vitamin C in food?
answer

boiling
question

In an atom, the electrons orbiting around the nucleus have what kind of a charge?
answer

negative
question

Which of the following diseases has NOT been linked to free radical damage? A) heart disease B) type 1 diabetes C) arthritis D) cancer
answer

type 1 diabetes
question

Which if the following is NOT a proposed mechanism by which antioxidants help prevent cancer? A) enhancing the immune system B) preventing damage to DNA through oxidation C) allowing aging and apoptosis of cancer cells D) serving as prooxidants against cancer cells
answer

serving as prooxidants against cancer cells
question

Which of the following foods would be the BEST source of preformed vitamin A? A) rice B) carrots C) eggs D) cantaloupe
answer

eggs
question

A chemical reaction in which atoms lose electrons is A) radiation. B) oxidation. C) reduction. D) mineralization.
answer

oxidation
question

Which of the following are required components of antioxidant enzyme systems? A) antioxidant vitamins B) gastrointestinal microflora C) phytochemicals D) antioxidant minerals
answer

antioxidant minerals
question

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

vitamin e
question

Which of the following statements is FALSE regarding free radicals? A) Many diseases, such as cancer & heart disease, are linked to free radical damage. B) Our body has no mechanism to combat free radicals. C) Exposure to pollution increases free radical production. D) Free radicals are formed as a by-product of healthy metabolism.
answer

Our body has no mechanism to combat free radicals.
question

Research studies have consistently demonstrated an association between a reduced risk of cancer and a) the use of vitamin C supplements. b) increased consumption of fruits and vegetables. c) the use of beta-carotene supplements. d) increased consumption of monounsaturated fatty acids.
answer

increased consumption of fruits and vegetables.
question

………….are formed by exposure to air pollution and tobacco smoke.
answer

free radicals
question

Which of the following foods are the richest sources of vitamin E? a. Meats b. Citrus fruits c. Vegetable oils d. Milk and dairy products
answer

vegetable oil, nuts, seeds
question

**Which of the following mineral can function as an antioxidant? A) chromium B) calcium C) fluoride D) selenium
answer

selenium
question

Symptoms of a vitamin C (C my teeth) deficiency include *
answer

bleeding gums and loose teeth.
question

Which of the following would NOT help reduce the risk for developing cancer
answer

consuming nitrites and nitrates
question

Which of the following statements is FALSE regarding the mineral selenium? A) Most selenium our bodies is contained within two amino acid derivatives. B) Selenium is involved in the maintenance of basal metabolism and body temperature. C) Selenium is present only in foods of animal origin. D) Selenium is a component of the glutathione peroxidase antioxidant enzyme system
answer

Selenium is present only in foods of animal origin
question

Which of the following is a compound that is needed to activate an enzyme? A) a cofactor B) a free radical C) an electrolyte D) an antioxidant
answer

a cofactor
question

Once the DNA of the cell is mutated and the altered cells begin to grow, the development of cancer is inevitable.
answer

false
question

Vitamin A plays an essential role in the human body in A) acting as an antioxidant and scavenging free radicals. B) preventing scurvy. C) maintaining healthy vision. D) protecting polyunsaturated fatty acids (PUFAs) from oxidation.
answer

maintaining healthy vision
question

**Which water-soluble vitamin can regenerate vitamin E after it has been oxidized? A) vitamin B12 B) folate C) vitamin D D) vitamin C
answer

vitamin C

Get instant access to
all materials

Become a Member