What is erythrocyte protoporphyrin?
Which of the following is an important function selenium?
Inhibits the formation of free radicals
Which of the following foods should be especially limited in the diet of individuals with hemochromatosis?
What is the response of the thyroid gland to an iodine deficiency?
Increase in its size to trap more iodine
One of the thyroid gland hormones is called
Which of the following characteristics are shared by iron and zinc?
Both are absorbed into intestinal epithelial celss but may then be lost by normal villius cell renewal processes
Which of the following is a feature of iron nutrition?
On average, women do not eat enough iron-containing foods
Approximately how many people worldwide are thought to be affected by iron-deficiency anemia?
Which of the following is a characteristics of iron deficiency?
People with anemia generally become fatigued only when they exert themselves
Which of the following is a characteristics of iron absorption?
Abosorption of heme iron that is about 50% higher than nonheme iron
Under normal circumstances, what is the average percentage of dietary iron that is absorbed?
What is the oxygen-carrying protein of muscle cells?
What is the primary function of the thyroid hormones?
Control the rate of oxygen use of cells
An enzyme in which zincor copper is an integral part of its structure is classified as a(n)
Which of the following is not a feature of zinc supplements?
They reduce the incidence of goiter in developing countries
What is the primary mechanism associated with the role of flouride in prevention of dental caries?
Flouride becomes incorporated into the crystalline structure of teeth, making them less susceptibleto decay
What is the average lifespan of red blood cells?
Which of the following provides the greatest amount of iron per serving?
Which of the following is the richest source of iodine?
The erythrococyte protoporphyrin level is used as an indicator of
Late iron deficiency
All o fthe following are recognized symptons of zine deficiency EXCEPT
If a person's body has a total of 5 grams of iron, how many grams would be found in the hemoglobin?
Keshan disease results from a deficiency of
All of the following are known to reduce the absorption of iron EXCEPT
What population group is at the highest risk for iron overload?
What is the bioavailability of dietary zinc?
How does vitamin C enhance iron absorption when consumed in the same meal?
It keeps iron in the reduced ferrous form
Which of the following is a feature of zinc in nutrution?
Pancreatic enzymes are rich in zinc
Which of the following minerals functions primarily in reactions that consume oxygen?
Which of the following is a common side effect from taking iron supplements?
Approximately how much higher is the RDA for iron for a vegetarian woman of childbearing age compared with her nonvegetarian counterpart?
What iron-containing compound carries oxygen in the bloodstream?
All off the following are chief storage sites for surplus iron EXCEPT the
Which of the following is a feature of iodine in nutrition?
Processesed foods in the U.S do not use iodized salt
Which of the following minerals undergoes enterpancreatic circulation during normal metabolism?
What is the adult RDA for iodine?
What is hepcidin?
A liver-derived hormone that helps regulate iron absorption and transport
Which of the following fruits are known to contain substances that inhibit the functioning of the thyroid gland?
Peaches and strawberries
What is the ionic state of ferric iron?
Characteristics of manganese in nutrition include all of the following EXCEPT
Deficiency are seen primarily in the elderly