What are the general functions of the essential trace minerals?
Trace minerals tend to act as cofactors and prosthetic groups and provide scaffolding for many of the hard tissues in your body.
• Some trace minerals are cofactors of metalloenzymes. (Binding of the mineral cofactor to the enzyme activates it, allowing it to bind to its substrate and carry out its function.)
• Other trace minerals are components of larger nonenzymatic prosthetic groups (nonprotein components of proteins). Hemoglobin is an example.
• Some trace minerals provide structure to mineralized tissues. Fluoride, which provides strength to bones and teeth, is an example.
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Given the alcohol content of most alcoholic beverages in the U.S., what effect does the consumption of alcohol likely have on hydration status?
a. No effect b. Little effect because the % alcohol contained is low c. Negative effect due to alcohol's diuretic effect d. Positive effect due to an increased drive to drink
What is the primary mechanism associated with the role of fluoride in prevention of dental caries?
a. Fluoride increases calcium absorption, which increases crystal formation of teeth b. Decay is inhibited due to neutralization of organic acids produced by bacteria on the teeth c. Decay is reduced due to the inhibitory effects of fluoride on growth of bacteria on the teeth d. Fluoride becomes incorporated into the crystalline structure of teeth, making them less susceptible to decay
Is coffee a part of a healthful diet?
During pregnancy, symptoms such as high blood pressure, excess protein in the urine, edema, changes in blood clotting, and seizures are associated with a condition called
A. secondary hypertension. B. eclampsia. C. preeclampsia. D. essential hypertension.