Chapter 6 Quiz
1. People gain weight when they
A. eat high-fat foods.
B. snack between meals.
C. avoid strenuous physical activity.
D. consume more calories than they need.
2. The body mass index is
A. based on popular body images.
B. an age-graded obesity measure.
C. a height/weight index in metric units.
D. a method of measuring body composition.
3. Skinfold measurements, electrical impedance, and hydrostatic weighing are all measures of
A. body composition.
B. obesity.
C. weight.
D. fitness.
4. The principle behind electrical impedance measurement is that
A. body tissues of older people respond differently than those of younger people.
B. electrical currents will be conducted around the outside surfaces of the body.
C. muscles respond to electrical current, while fat does not.
D. fat has a different electrical resistance than muscle.
5. Which of the following best summarizes the set point theory?
A. Each person has a point beyond which he or she cannot lose weight.
B. Each person's body regulates its use of energy to maintain a certain weight.
C. The body begins to store fat when eating reaches a certain point, which differs for each person.
D. Once an overweight person has lost weight, it becomes easier to lose more weight due to changes in metabolism.
6. The typical woman enters childbirth having gained ____ pounds over her prepregnancy weight.
A. 20
B. 28
C. 38
D. 42
7. According to weight management experts, the single most important factor leading to obesity in the United States is
A. inactivity.
B. family dietary habits.
C. the mass promotion of junk foods.
D. environmental triggers for endocrine dysfunctions.
8. The most common approach to weight loss in the United States is
A. prescription drugs.
B. low-calorie diets.
C. skipping meals.
D. exercise.
9. Gastroplasty achieves its effectiveness as anti-obesity surgery by
A. reducing the size of the stomach.
B. tightening the muscles around digestive organs.
C. shortening the path of food through the digestive tract.
D. routing food away from the areas of greatest absorption.
10. Harry is lean and muscular, and he is proud of his appearance. However, he seems to eat twice as much as a normal person. When you see him sneak out to the bathroom after an eating binge, you should suspect that he is suffering from
A. an addiction to weight-loss drugs.
B. a digestive dysfunction.
C. anorexia nervosa.
D. bulimia nervosa.