131.Which one of the following nutrients protects bones and reduces the risk for hip fractures?

a.vitamin B₁₂

b.vitamin E

c.carbohydrate

d.protein

132.Which of these vitamins is needed for bone remodelling, but a toxic level can actually be associated with osteoporosis?

a.vitamin E

b.vitamin C

c.vitamin K

d.vitamin A

133.Among the following ethnic groups, which has the highest bone density?

a.Japanese

b.Caucasian

c.African-Canadian

d.South American Hispanic

134.What is the incidence of bone fractures in African-Canadian women in comparison with Caucasian women?

a.same

b.one-half as much

c.twice as much

d.three times as much

135.Which of the following shows a relationship between physical activity and bone health?

a.Dancing is not an effective activity for helping maintain bone density.

b.Weight training improves bone density in young but not older women.

c.Working the muscles places stress on bones, which promotes bone density.

d.Weight-bearing activities are effective in maintaining bone mass in adults but not in adolescents.

136.Which of the following best explains why Asians from Japan and China show fewer bone fractures than do Caucasians and Hispanic people?

a.The Asians have denser bones.

b.The Asians have small, compact, hips.

c.The Asians have higher calcium intakes.

d.The Asians use less tobacco and alcohol.

137.In Canada, what is the percentage of people who can return home after being hospitalized for a hip fracture?

a.20 percent

b.24 percent

c.40 percent

d.44 percent

138.Which of the following toxic minerals can be found in calcium supplements?

a.mercury

b.cadmium

c.lead

d.arsenic

139.Which of the following is a reason why people choose to take calcium supplements?

a.Common antacids are used as a source of calcium and they are cheaper than milk.

b.The bioavailability of calcium from most supplements is significantly lower than from milk.

c.There are large differences in the efficiency of calcium absorption from various supplements.

d.The calcium in supplements made from oyster shell and bone meal is more absorbable than the calcium in calcium citrate and calcium lactate.

140.Among the following calcium supplements, which is most likely to be contaminated with toxic minerals?

a.oyster shells

b.calcium lactate

c.calcium citrate

d.calcium carbonate