Chapter 8 quiz Nutrition Issues – Flashcards
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Which of the following cooking methods will likely destroy the MOST vitamin C in food?
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boiling
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In an atom, the electrons orbiting around the nucleus have what kind of a charge?
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negative
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Which of the following diseases has NOT been linked to free radical damage? A) heart disease B) type 1 diabetes C) arthritis D) cancer
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type 1 diabetes
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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
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serving as prooxidants against cancer cells
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Which of the following foods would be the BEST source of preformed vitamin A? A) rice B) carrots C) eggs D) cantaloupe
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eggs
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A chemical reaction in which atoms lose electrons is A) radiation. B) oxidation. C) reduction. D) mineralization.
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oxidation
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Which of the following are required components of antioxidant enzyme systems? A) antioxidant vitamins B) gastrointestinal microflora C) phytochemicals D) antioxidant minerals
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antioxidant minerals
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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
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vitamin e
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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.
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Our body has no mechanism to combat free radicals.
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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.
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increased consumption of fruits and vegetables.
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.............are formed by exposure to air pollution and tobacco smoke.
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free radicals
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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
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vegetable oil, nuts, seeds
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**Which of the following mineral can function as an antioxidant? A) chromium B) calcium C) fluoride D) selenium
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selenium
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Symptoms of a vitamin C (C my teeth) deficiency include *
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bleeding gums and loose teeth.
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Which of the following would NOT help reduce the risk for developing cancer
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consuming nitrites and nitrates
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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
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Selenium is present only in foods of animal origin
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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
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a cofactor
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Once the DNA of the cell is mutated and the altered cells begin to grow, the development of cancer is inevitable.
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false
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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.
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maintaining healthy vision
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**Which water-soluble vitamin can regenerate vitamin E after it has been oxidized? A) vitamin B12 B) folate C) vitamin D D) vitamin C
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vitamin C
