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1 | |
Iron is rapidly depleted from the body during: |
| | A) | vigorous exercise. |
| | B) | high calcium absorption. |
| | C) | weight loss. |
| | D) | blood loss. |
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2 | |
Ceruloplasmin: |
| | A) | acts primarily in the cells of the muscles. |
| | B) | converts hemoglobin to myoglobin. |
| | C) | changes Fe2+ to Fe3+. |
| | D) | contains zinc. |
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3 | |
Most of the iron in the red blood cells is located in |
| | A) | ferritin. |
| | B) | myoglobin. |
| | C) | hemoglobin. |
| | D) | cytochromes. |
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4 | |
Iron absorption from plant sources can be increased by __________ in the meal. |
| | A) | phytic acid |
| | B) | vitamin C and meat |
| | C) | phosphates |
| | D) | dietary fiber |
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5 | |
Which of the following foods provides non-heme iron? |
| | A) | eggs |
| | B) | milk |
| | C) | vegetables |
| | D) | meats |
| | E) | all the above |
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6 | |
Ferritin and hemosiderin are |
| | A) | storage forms of iron. |
| | B) | other forms of hemoglobin. |
| | C) | the iron-protein carriers in the blood. |
| | D) | types of red blood cells. |
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7 | |
If an adult male is anemic, a cause physicians initially suspect is: |
| | A) | a bleeding ulcer. |
| | B) | cirrhosis of the liver. |
| | C) | a poor diet. |
| | D) | kidney disease. |
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8 | |
The RDA for iron assumes about ______________ of dietary iron is absorbed. |
| | A) | 5% to 7% |
| | B) | 18% |
| | C) | 25% to 30% |
| | D) | 65% |
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9 | |
High intakes of iron in certain people can lead to: |
| | A) | anemia. |
| | B) | liver damage. |
| | C) | hypertension. |
| | D) | nerve damage. |
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10 | |
Milk is a good source of iron. |
| | A) | True |
| | B) | False |
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11 | |
The most reliable food source of zinc is: |
| | A) | meats and seafood. |
| | B) | orange juice. |
| | C) | dark green vegetables. |
| | D) | iodized salt. |
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12 | |
Taste sensitivity has been shown to be altered in a(n) __________ deficiency. |
| | A) | iron |
| | B) | iodide |
| | C) | selenium |
| | D) | zinc |
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13 | |
The enzyme superoxide dismutase contains both copper and zinc. The function of the enzyme is |
| | A) | to increase blood cholesterol. |
| | B) | to protect whole grain cereals from rancidity. |
| | C) | as an important scavenger of free radicals, thus protecting the lipid components of the cell. |
| | D) | to maintain acid-base balance in the blood |
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14 | |
Two important neurotransmitters, norepinephrine and dopamine, depend on a ______________ -containing enzyme for synthesis. |
| | A) | copper |
| | B) | TSH |
| | C) | zinc |
| | D) | iodide |
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15 | |
Which of the following is not associated with antioxidant systems? |
| | A) | thiamin |
| | B) | vitamin C |
| | C) | vitamin E |
| | D) | selenium |
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16 | |
Iodide deficiency results in: |
| | A) | anemia. |
| | B) | scurvy. |
| | C) | osteomalacia. |
| | D) | goiter. |
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17 | |
Raw goitrogenic foods can inhibit iodide metabolism. Examples of goitrogenic foods are |
| | A) | cabbage, broccoli, and cauliflower. |
| | B) | yogurt, buttermilk, and cheese. |
| | C) | chips, olives, and dill pickles. |
| | D) | beef, poultry, and fish. |
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18 | |
Iodide in the blood is trapped by the |
| | A) | adrenal glands and synthesized into aldosterone. |
| | B) | thyroid gland and synthesized into calcitonin. |
| | C) | thyroid gland and synthesized into thyroxine. |
| | D) | parathyroid gland and synthesized into thyroxine. |
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19 | |
The fluoridation of public drinking water is |
| | A) | responsible for a 40% to 60% reduction in dental caries in children. |
| | B) | more expensive than fluoride mouthwash. |
| | C) | not as effective as fluoridated toothpaste. |
| | D) | the typical cause of tooth mottling. |
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20 | |
In humans, impaired glucose tolerance, elevated blood cholesterol and elevated blood triglycerides are associated with a dietary deficiency in: |
| | A) | iron. |
| | B) | manganese. |
| | C) | molybdenum. |
| | D) | chromium. |
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21 | |
In the body, iron is found |
| | A) | in the liver |
| | B) | in the blood |
| | C) | in muscle tissue |
| | D) | in every living cell |
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22 | |
The most common deficiency disease in the world is |
| | A) | pernicious anemia |
| | B) | iron deficiency anemia |
| | C) | osteoporosis |
| | D) | goiter |
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23 | |
The primary factor determining iron absorption is |
| | A) | age |
| | B) | gender |
| | C) | amount of heme iron in the diet |
| | D) | the body's need for iron |
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24 | |
Iron is stored in the liver as |
| | A) | red blood cells |
| | B) | hemosiderin |
| | C) | apoferritin |
| | D) | ferritin |
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25 | |
A clinical symptom of iron-deficiency anemia is |
| | A) | fatigue |
| | B) | pale skin |
| | C) | intolerance to cold temperatures |
| | D) | all the above |
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26 | |
In some cultures pots and pans used in cooking acidic foods may contribute some to the diet |
| | A) | zinc |
| | B) | iron |
| | C) | chromium |
| | D) | magnesium |
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27 | |
Dietary deficiency of ________ is associated with retarded growth and inadequate sexual development in humans. |
| | A) | iron |
| | B) | iodide |
| | C) | selenium |
| | D) | zinc |
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28 | |
Symptoms of a copper deficiency in humans include |
| | A) | anemia |
| | B) | inadequate growth |
| | C) | bone loss |
| | D) | all the above |
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2002 McGraw-Hill Higher Education