FSHN 120 Chapter 8 – Flashcards
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Carotenosis is a condition causing yellow or orange pigments in the skin. It is caused by consuming too much of which types of food?
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Deep green and dark yellow fruits and vegetables
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To reduce the risk of skin cancer, one should limit sunlight exposure to no more than ______ minutes between 10 AM and 4 PM
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20
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The heart disorder caused by a selenium deficiency is
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Keshan disease
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What is a compound that has the ability to prevent or repair the damage caused by oxidation?
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Antioxidant
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What type of cancer has the highest mortality rate?
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Lung
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Which of the following is NOT a sign or symptom of a possible cancer?
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Unexplained weight gain
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All of the following act as cofactors EXCEPT
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Calcium
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Atoms with unpaired electrons are called
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Free radicals
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All of the following factors may cause free radical formation EXCEPT
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Eating fruits and vegetables
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Which of the following foods has the highest beta-carotene content?
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Pumpkin
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Which of the following foods would be considered a poor source of vitamin E?
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Milk
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Which of the following is a major symptom of vitamin C deficiency?
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Tissue hemorrahage
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What is the name for a physician who specializes in cancer treatment?
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Oncologist
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One serious consequence of a vitamin A deficiency is
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Xerophthalmia
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Which of the following nutrients does not have a Recommended Daily Allowance?
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Beta-carotene
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Which of the following may help reduce the risk of cancer?
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Eating a diet rich in fruits and vegetables
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During which phase do cancerous cells metastasize
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Progression
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What disease is associated with a deficiency of vitamin C?
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Scurvy
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Which of the following foods contains the highest amount of selenium?
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Halibut (three ounces)
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Which of the following is linked to cervical cancer?
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Human papillomavirus (HPV)
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What percentage of all cancer deaths could be prevented if everyone followed the American Cancer Society's recommendation to quit smoking?
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33
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Which of the following is NOT a proposed mechanism by which antioxidants help prevent cancer?
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Preventing damage to DNA through oxidation
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Acne is a symptom of a vitamin A deficiency
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False
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Selenium is the only mineral with a known antioxidant function
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False
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Which of the following does NOT occur during the stage of cancer known as promotion?
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Mutated cells grow their own blood vessels
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Eating whole foods that are high in antioxidants, such as fruits, vegetables, and whole grains, is consistently shown to be associated with a decreased risk of cancer
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True
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What type of cells is responsible for enabling us to see in different colors?
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Cone
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Lung cancer is the most common form of cancer in the United States
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False
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Which of the following causes cervical cancer?
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HPV
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Consuming even moderately excessive doses of vitamin C supplements would be MOST harmful to individuals suffering from
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Hemochromatosis
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Vitamin E deficiency causes xerophthalmia, a type of irreversible blindness due to hardening of the cornea
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False
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Results of the Beta-Carotene and Retinol Efficacy Trial (CARET) indicated a higher incidence of lung cancer among those who took beta-carotene and retinol supplements
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True
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Excessive consumption of vitamin A supplements can be highly toxic
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True
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About 90 % of vitamin E is stored in
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Adipose tissue
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Which of the following is a substance that promotes oxidation and cell damage
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A prooxidant
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The light-sensitive pigment found in rod cells and formed by retinal and opsin is
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Rhodopsin
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Antioxidant minerals function as ________ within antioxidant enzyme systems
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Cofactors
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Antioxidant enzyme systems act by
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Converting free radicals to less damaging substances
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Which of the following converts oxidized vitamin E into its active form
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Vitamin C
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At what stage in the development of cancer do the cancerous cells grow out of control and invade surrounding tissues
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Progression
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Which of the following provides more than the RDA of vitamin A for women
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1 cup of canned sweet potato
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