nutrition chapter 13
What is the primary mechanism associated with the role of fluoride in prevention of dental caries
Fluoride becomes incorporates into the crystalline structure of teeth making them less susceptible to decay
all the following are known to reduce the absorption iron except
MFP factor
Keshan disease results from a deficiency of
Selenium
What nutrient has functions similar to those of vitamin E
Selenium
Characteristic of lead in the body
blood concentrations correlate with low IQ scores
Chief function of chromium is participation in the metabolism of
carbs
What mineral is part of vitamin B12
cobalt
The rare genetic disorders Mekes disease and Wilsons diseases result from the abnormal utilization of
copper
A woman with a severe iodine deficiency during pregnancy may give birth to a child with a. anemia. b. rickets. c. cretinism. d. allergies
cretinism
Characteristics of manganese in nutrition include all the following except
deficiencies are seen primarily in the elderly
What is the function of the MFP factor
enhances iron absorption
Which of the following conditions is known to lead to copper deficiency
excess zinc
What food provides iron in the most absorabable form
hamburger
Chromium deficiency is characterized by
hyperglycemia
What is the response of the thyroid gland to an iodine deficiency
increase in its size to trap more iodine which can result in a goiter
Most common cause of iodine deficiency is
insufficient intake of iodine from foods.
As far as is known, what hormone is dependent upon chromium for optimal activity? a. Renin b. Gastrin c. Insulin d. Antidiurectic hormone
insulin
What is a feature of copper in nutrition
involved in collagen synthesis and wound healing
Which of the following foods should be especially limited in the diet of individuals with hemochromatosis
iron-fortified cereals
the erythrocyte protopotphyrin level is used as an indicator of
late iron deficiency
An enzyme in which zinc or copper is an integral part of its structure is classified as a(n) a. metalloenzyme. b. oxidoreductase. c. cytochromidase. d. metallothionase
metalloenzyme
Richest source of iodine
seafood/seaweed
In the body, lead is known to significantly interfere with utilization of all of the following minerals except a. iron. b. zinc. c. calcium. d. selenium
selenium
A person ingesting large amounts of thyroid antagonist substances is at high risk of developing a. cretinism. b. simple goiter. c. high blood T3 levels. d. high blood thyroxine levels
simple goiter
Which is a characteristic of the trace minerals
the amounts in foods are dependent, in part, on soil composition
What is a characteristic of chromium in nutrition
whole grains represent an excellent source
