Download Chapter 10: Nutrients Involved in Antioxidant Function and Vision

Chapter 10 Clicker Questions
Chapter 10:
Nutrients Involved
in Antioxidant
Function and
Vision
© 2017 Pearson Education, Inc.
Oxidation 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.
© 2017 Pearson Education, Inc.
Oxidation 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.
© 2017 Pearson Education, Inc.
Which 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.
© 2017 Pearson Education, Inc.
Which 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.
© 2017 Pearson Education, Inc.
Which 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.
© 2017 Pearson Education, Inc.
Which 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.
© 2017 Pearson Education, Inc.
Which of the following trace minerals is part of the
structure of catalase?
a)
b)
c)
d)
iodine
iron
copper
manganese
© 2017 Pearson Education, Inc.
Which of the following trace minerals is part of the
structure of catalase?
a)
b)
c)
d)
iodine
iron
copper
manganese
© 2017 Pearson Education, Inc.
Beta-carotene is
a)
b)
c)
d)
a weak antioxidant phytochemical.
a carotenoid.
a provitamin for vitamin A.
all of the above.
© 2017 Pearson Education, Inc.
Beta-carotene is
a)
b)
c)
d)
a weak antioxidant phytochemical.
a carotenoid.
a provitamin for vitamin A.
all of the above.
© 2017 Pearson Education, Inc.
Vitamin 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.
© 2017 Pearson Education, Inc.
Vitamin 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.
© 2017 Pearson Education, Inc.
Deficiency of vitamin A is associated with
a)
b)
c)
d)
scurvy and anemia
erythrocyte hemolysis and impaired movement
xerophthalmia and hyperkeratosis
carotenosis and carotenodermia
© 2017 Pearson Education, Inc.
Deficiency of vitamin A is associated with
a)
b)
c)
d)
scurvy and anemia
erythrocyte hemolysis and impaired movement
xerophthalmia and hyperkeratosis
carotenosis and carotenodermia
© 2017 Pearson Education, Inc.
Within a year or two of its initiation, cancer
develops to the point at which it is able to
a)
b)
c)
d)
invade surrounding tissues.
establish its own blood supply.
release malignant cells into the blood or lymph.
none of the above is true.
© 2017 Pearson Education, Inc.
Within a year or two of its initiation, cancer
develops to the point at which it is able to
a)
b)
c)
d)
invade surrounding tissues.
establish its own blood supply.
release malignant cells into the blood or lymph.
none of the above is true.
© 2017 Pearson Education, Inc.
The modifiable factor that most significantly
increases the risk for cancer is
a)
b)
c)
d)
random mutation.
heredity.
tobacco use.
poor nutrition.
© 2017 Pearson Education, Inc.
The modifiable factor that most significantly
increases the risk for cancer is
a)
b)
c)
d)
random mutation.
heredity.
tobacco use.
poor nutrition.
© 2017 Pearson Education, Inc.
A 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.
A 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.