71.Approximately how many grams of magnesium are found in the body of a 60 kg                             individual?

a.10

b.20

c.30

d.40

72.Where is the majority of the body’s magnesium found?

a.bones

b.teeth

c.fatty tissue

d.cells of soft tissue

73.Which of the following is a major function of magnesium?

a.transport of oxygen

b.prevention of anemia

c.catalyst in energy metabolism

d.production of thyroid hormone

74.A friend shows you a newspaper article titled “Magnesium’s Role in ATP Synthesis.” After reading the article, what comments do you make?

a.Magnesium does not play a role in ATP synthesis.

b.It is not magnesium but manganese that plays the role in ATP synthesis.

c.Magnesium serves as a catalyst in the reaction that adds the last phosphate to ATP.

d.There are three magnesium groups within the ATP structure that help it do its work.

75.Which of the following minerals is required in the enzymatic phosphorylation of ATP?

a.iron

b.copper

c.sodium

d.magnesium

76.Which of the following is an excellent and sometimes unusual food source of magnesium?

a.fresh blueberries

b.poached eggs

c.roasted pumpkin seeds

d.white rice

77.Which of the following is a function of magnesium?

a.urinary system function

b.regulation of thyroid system function

c.maintenance of reproductive system function

d.immune system function

78.The magnesium present in mineral water has a bioavailability of about which of the following amounts?

a.5 percent

b.25 percent

c.50 percent

d.90 percent

79.Jody has taken her daughter to the doctor, because Suzie has been experiencing strange facial muscle movements and difficulty in swallowing.  Upon further examination, what mineral deficiency does Suzie have?

a.blood clotting

b.muscle contraction

c.prevention of dental caries

d.production of red blood cells

80.Which of the following characteristics is shared by copper and fluoride?

a.may be obtained from drinking tap water

b.serves as cofactor for a number of enzymes

c.not involved in the integrity of bones and teeth

d.not known to be toxic at intakes of 10 times the estimated safe and adequate dietary intake