Metallothionine is a protein produced in intestinal cells that plays an important role in regulating _____ absorption.
A. iron
B. selenium
C. zinc
D. magnesium
Q. 2A mineral that is thought to improve insulin function is
A. selenium.
B. molybdenum.
C. magnesium.
D. chromium.
Q. 3Copper is transported in the blood by the protein
A. transferrin.
B. ferritin.
C. ceruloplasmin.
D. superoxide dismutase.
Q. 4Hereditary hemochromatosis is caused by a genetic defect that results in
A. insufficient iron excretion.
B. insufficient storage of iron.
C. excessive iron absorption.
D. excessive desire for iron-rich foods.
Q. 5Severe iron deficiency results in anemia. The red blood cells produced in iron-deficiency anemia are described as
A. microcytic and hyperchromic.
B. microcytic and hypochromic.
C. macrocytic and hypochromic.
D. macrocytic and hyperchromic.
Q. 6The iron transport protein in the blood that delivers iron to cells is
A. transferrin.
B. ferritin.
C. hemoglobin.
D. myoglobin.
Q. 7Under normal circumstances, a person's iron status is regulated by
A. changing how much iron is absorbed.
B. changing how much iron is excreted.
C. changing how much iron is synthesized.
D. changing how much iron is consumed.
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