Which of the following is a characteristic of vitamin E?a It enhances the absorption of iron.. Which of the following is a characteristic of vitamin E?a It enhances the absorption of iro
Trang 1Chapter 10 Clicker Questions
Trang 2Oxidation is best described as a process in which
a) a carcinogen causes a mutation in a stem cell's DNA
b) an atom loses an electron
c) two atoms exchange electrons
d) a complex compound is broken apart with the addition of water
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Trang 3Oxidation is best described as a process in which
a) a carcinogen causes a mutation in a stem cell's DNA
b) an atom loses an electron.
c) two atoms exchange electrons
d) a complex compound is broken apart with the addition of water
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Trang 4Which of the following is a characteristic of vitamin E?
a) It enhances the absorption of iron
b) It can be manufactured from beta-carotene
c) It is a critical component of the glutathione peroxidase system
d) It protects the lipid molecules in cell
membranes from oxidation
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Trang 5Which of the following is a characteristic of vitamin E?
a) It enhances the absorption of iron
b) It can be manufactured from beta-carotene
c) It is a critical component of the glutathione peroxidase system
d) It protects the lipid molecules in cell membranes from oxidation.
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Trang 6Which of the following is a critical function of vitamin C?
a) It is required for the formation of collagen
b) It regenerates glutathione to its antioxidant form
c) It reduces the incidence, duration, and severity of the common cold
d) It promotes the conversion of beta-carotene to vitamin A
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Trang 7Which of the following is a critical function of vitamin C?
a) It is required for the formation of collagen.
b) It regenerates glutathione to its antioxidant form
c) It reduces the incidence, duration, and severity of the common cold
d) It promotes the conversion of beta-carotene to vitamin A
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Trang 8Which of the following trace minerals is part of the structure of catalase?
Trang 9Which of the following trace minerals is part of the structure of catalase?
Trang 10Beta-carotene is
a) a weak antioxidant phytochemical
b) a carotenoid
c) a provitamin for vitamin A
d) all of the above
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Trang 11Beta-carotene is
a) a weak antioxidant phytochemical
b) a carotenoid
c) a provitamin for vitamin A
d) all of the above.
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Trang 12Vitamin A
a) participates in the conversion of iodopsin to rhodopsin, a key step in both black-and-white
and color vision
b) opposes oxidation of the pigment in rod cells during the bleaching process
c) is a key component of the pigment in rod cells
that enables us to perceive black-and-white images
d) is a key player in the process by which humans see in the dark
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Trang 13Vitamin A
a) participates in the conversion of iodopsin to rhodopsin, a key step in both black-and-white
and color vision
b) opposes oxidation of the pigment in rod cells during the bleaching process
c) is a key component of the pigment in rod cells that enables us to perceive
black-and-white images.
d) is a key player in the process by which humans see in the dark
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Trang 14Deficiency of vitamin A is associated with
a) scurvy and anemia
b) erythrocyte hemolysis and impaired movement
c) xerophthalmia and hyperkeratosis
d) carotenosis and carotenodermia
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Trang 15Deficiency of vitamin A is associated with
a) scurvy and anemia
b) erythrocyte hemolysis and impaired movement
c) xerophthalmia and hyperkeratosis
d) carotenosis and carotenodermia
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Trang 16Within a year or two of its initiation, cancer develops to the point at which it is able to
a) invade surrounding tissues
b) establish its own blood supply
c) release malignant cells into the blood or lymph
d) none of the above is true
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Trang 17Within a year or two of its initiation, cancer develops to the point at which it is able to
a) invade surrounding tissues
b) establish its own blood supply
c) release malignant cells into the blood or lymph
d) none of the above is true.
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Trang 18The modifiable factor that most significantly increases the risk for cancer is
Trang 19The modifiable factor that most significantly increases the risk for cancer is
Trang 20A diet rich in antioxidant nutrients may help reduce the risk for CVD by
a) causing body cells with mutated DNA to self-repair or self-destruct
b) protecting endothelial cell membranes and reducing inflammation and coagulation
c) promoting the synthesis of homocysteine and CRP
d) all of the above
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Trang 21A diet rich in antioxidant nutrients may help reduce the risk for CVD by
a) causing body cells with mutated DNA to self-repair or self-destruct
b) protecting endothelial cell membranes and reducing inflammation and
coagulation.
c) promoting the synthesis of homocysteine and CRP
d) all of the above
© 2017 Pearson Education, Inc.