What is the major cause of iron deficiency?
a. Blood loss
b. Poor nutrition
c. Hereditary defect
d. Parasitic infections of the GI tract
e. Exposure to environmental toxins
ANS: B
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Approximately what percentage of U.S. children and youth age 2 to 19 are obese?
A. 7% B. 17% C. 27% D. 37%
What describes a relationship between leptin and energy balance??
A) ?Fat cell sensitivity to leptin is higher in obese people. B) ?A deficiency of leptin is characteristic of all obese people. C) ?Blood levels of leptin usually correlate directly with body fat. D) ?Major functions of leptin include an increase in hunger and a decrease in metabolic rate.
Calculate the protein needs of a healthy, 140-lb woman.
What will be an ideal response?
Which statement about the absorptive system is false?
a. Cells of the intestinal tract are specialized to absorb different nutrients.
b. Fat soluble nutrients pass through villi and enter the lymph.
c. The small intestine is about 25-feet long.
d. The many folds and villi of the small intestine increase its surface area, which helps nutrient absorption.
e. If one part of the GI tract becomes dysfunctional, one’s diet should be adjusted accordingly.