NFS 1110: Exam 3

The energy (kcalories) provided by one gram each of protein, fat, carbohydrate and alcohol is: a. 7 4 9 4. b. 4 4 4 9. c. 4 9 4 7. d. no answer is correct. e. 9 9 4 4.

c. 4 9 4 7.

The three components of energy expenditure are: a. basal metabolism, energy consumption and protein metabolism. b. physical activity, sleeping and eating. c. basal metabolism, physical activity and diet-induced thermogenesis. d. basal metabolism, resting heat conductance and consumptive capacity. e. no answer is correct.

c. basal metabolism, physical activity and diet-induced thermogenesis.

Long term healthy weight loss is based on all the following principles EXCEPT: a. adopting lifelong changes in eating habits. b. no exceptions - long term healthy weight loss is based on all of these principles c. eating foods in the "right" combinations to burn more calories. d. moderate portion sizes. e. increasing physical activity.

c. eating foods in the "right" combinations to burn more calories.

Americans are exercising less for all the reasons listed below EXCEPT: a. most people rely on automobiles for transportation rather than walking or biking. b. many jobs are less physically demanding than in the past. c. open spaces for outdoor activities are becoming limited. d. no answer is an exception - Americans are exercising less for all of these reasons e. leisure time is often spent in sedentary activities.

c. open spaces for outdoor activities are becoming limited.

Alli is an over-the-counter weight loss drug that: a. increases energy expenditure. b. reduces appetite. c. prevents triglyceride digestion and absorption. d. activates brown adipose tissue. e. no answer is correct.

c. prevents triglyceride digestion and absorption.

If no food is eaten for more than a few hours, gluconeogenesis occurs, forming glucose from: a. fatty acid deposits in adipose tissue. b. stored amino acids. c. glycogen stores. d. no answer is correct. e. functioning body protein.

e. functioning body protein.

Which is a FALSE statement regarding the use of anthropometric measurements such as waist circumferences and skinfold thickness to estimate body composition? a. Although fairly accurate, skinfold measurement is relatively expensive. b. Accuracy is dependent upon the skill of the person using the skinfold calipers. c. All of these statements are true. d. Measurements are more accurate in normal weight than in obese individuals. e. It is assumed that the subcutaneous fat is representative of total body fat.

a. Although fairly accurate, skinfold measurement is relatively expensive.

Which statement about obesity genes is FALSE? a. Obesity genes are the main culprit behind rising obesity levels. b. All of these statements about obesity genes are true. c. Abnormal obesity genes result in abnormal amounts of body fat. d. Obesity genes encode proteins. e. Obesity genes regulate food intake, energy expenditure or the deposition of body fat.

a. Obesity genes are the main culprit behind rising obesity levels.

Which statement about the relationship of obesity to "thrifty metabolism" is FALSE? a. Restricting food intake normally increases energy expenditure. b. It allows more efficient energy use and fat storage. c. Those who inherited "thrifty genes" are more likely to be obese. d. Thrifty metabolism may have evolved to prevent starvation. e. All of these statements are true.

a. Restricting food intake normally increases energy expenditure.

America's obesity epidemic: a. is primarily caused by Americans eating more and exercising less. b. is relatively benign, causing few health effects. c. no answer is correct. d. has not affected children. e. is unique since other countries have not experienced similar rises in obesity.

a. is primarily caused by Americans eating more and exercising less.

Which statement about obesity is true? a. Obesity rates tend to be constant across racial and ethnic groups. b. Obesity is defined as having a BMI greater than 30. c. Obesity is defined as having a BMI greater than 25. d. Obesity rates have remained constant over the last 50 years. e. No answer is correct.

b. Obesity is defined as having a BMI greater than 30.

To provide glucose to the body between meals: a. snacks must be consumed. b. glycogen is broken down. c. fat is broken down. d. internal organs are liquified. e. no answer is correct.

b. glycogen is broken down.

Which of the following does NOT help to explain why Americans are now eating more kcals than 30 years ago? a. No answer is correct. b. People tend to eat in units regardless of the size of the unit. c. Appetite is often triggered by ads for foods or the easy accessibility of foods. d. Genetic changes over the last 3 decades have led to Americans being hungrier. e. Average portion sizes have increased in homes and restaurants.

d. Genetic changes over the last 3 decades have led to Americans being hungrier.

According to BMI criteria, an individual with a body mass index (BMI) of 22 would be defined as: a. overweight. b. obese. c. no answer is correct. d. healthy weight. e. underweight.

d. healthy weight.

As foods are digested, the energy stored in the chemical bonds of carbohydrates, proteins and fats are converted to: a. no answer is correct. b. carbon dioxide. c. electrical energy. d. electrons. e. ATP.

e. ATP.

The recommended approach to dealing with overweight children is to: a. strictly limit kcalorie intake. b. encourage liquid weight loss products at lunch. c. institute moderate levels of drug therapy. d. no answer is correct. e. encourage physical activity and moderate kcalorie intake.

e. encourage physical activity and moderate kcalorie intake.