Chapter 11

The recommended intake of calcium for adults is __________ mgs/day.

1000-1200

Which of the following compounds has NOT been found to interfere with mineral absorption?

Ascorbic acid

Which is the FALSE statement about absorption of calcium?

Calcium absorption decreases during pregnancy

Which statement describes the relationship of bone calcium to blood calcium?

If dietary calcium is low, bone calcium is sacrificed to maintain blood calcium.

Which of the following is NOT likely to result from prolonged low calcium intake?

Problems with cell signaling and regulation

Which is the correct relationship between smoking and drinking and osteoporosis risk?

Smoking and drinking both increase risk.

Peak bone mass in women is typically achieved in:

early adulthood

Postmenopausal bone loss is primarily associated with decreased levels of the hormone:

estrogen

All of the following decrease the risk of osteoporosis EXCEPT:

low body weight.

Significant loss of bone mass and increased risk of fractures associated with aging is termed:

osteoporosis.

Good sources of magnesium include all of the following EXCEPT:

processed foods.

The following minerals all compete with each other for absorption EXCEPT:

sodium

Phosphorus is essential for energy production since it is part of:

ATP

Which statement concerning magnesium deficiency is FALSE?

Deficiency is common in the general population.

Which group could benefit from calcium supplements if needs are not met by diet?

Individuals with decreased bone density. Young people who have not yet achieved peak bone mass. Post-menopausal women. Answer = All these groups could benefit

Which of the following is NOT a typical reason why women are at increased risk of osteoporosis?

The hormonal changes that accompany menopause affect appetite for calcium-containing foods

The matrix of bones is

a protein framework made up primarily of collagen. imbedded with hydroxyapatite. Answer = All of these are correct.

After 35 to 45 years of age:

bone breakdown exceeds bone formation.

Most of the magnesium in the body is in:

bones

The most abundant mineral in the body is:

calcium