c. It occurs at powerful levels in the small intestine but not at all in the colon.
d. It is caused by alternate tightening and relaxing of circular and longitudinal muscles.
e. It may occur unpredictably but is typically in response to a full stomach.
Which of the following is a characteristic of marasmus in children?
a. It leads to inability to maintain body temperature.
b. It promotes hyperactivity and excessive crying for food.
c. It impairs brain development mainly from ages 2-5 years old.
d. It leads to severe edema of the abdomen but insufficient water retention by the brain.
e. It is rare even in very impoverished nations due to UN programs combating hunger.
Which of the following is true regarding B vitamins and homocysteine metabolism?
a.Folate catabolyzes homocysteine
b.Biotin supplements reduce blood homocysteine levels
c.Excessive homocysteine intake reduces vitamin B12absorption
d.High blood homocysteine levels correlate with reduced incidence of colon cancer
e.High folate levels are necessary for the synthesis of homocysteine
Which of the following is true of coronary heart disease (CHD)?
a. By age 20, half of the adults in the United States have at least one major risk factor
for CHD.
b. Women who take estrogen to reduce the risk for osteoporosis are at significantly
higher risk for CHD.
c. Aging becomes a significant risk factor for women who are 75 and older.
d. Women younger than 45 years of age tend to have higher LDL cholesterol than do
men of that age, but this difference disappears after menopause.
e. Levels of the amino acid homocysteine, which protects artery walls, are typically
higher in women than in men.