Question 1

Thirst is a very reliable indicator of dehydration.

Accepted Answer

A) True 
 B)False  False

Question 2

Which of the following has been shown to cause "feminization" in men and "masculinization" in women?

Accepted Answer

A) anabolic steroids 
B) creatine 
C) ephedrine 
D) carnitine 
A) anabolic steroids 
B) creatine 
C) ephedrine 
D) carnitine A

Question 3

Anaerobic metabolism of glucose fuels the muscles during short-term exercise.

Accepted Answer

A) True 
 B)False  True

Question 4

During anaerobic glycolysis,each molecule of glucose produces ________ ATP molecules.

Accepted Answer

A) 2 
B) 4 
C) 36 
D) 129 
A) 2 
B) 4 
C) 36 
D) 129

Question 5

Which of the following components of physical fitness allows the heart,lungs,and blood vessels to support the work of our muscles?

Accepted Answer

A) cardiorespiratory fitness 
B) musculoskeletal fitness 
C) flexibility 
D) body composition 
A) cardiorespiratory fitness 
B) musculoskeletal fitness 
C) flexibility 
D) body composition

Question 6

Carbohydrate loading maximizes the amount of ________ stored in skeletal muscles.

Accepted Answer

A) amino acids 
B) glycogen 
C) omega-6 fatty acids 
D) cholesterol 
A) amino acids 
B) glycogen 
C) omega-6 fatty acids 
D) cholesterol

Question 7

Protein can contribute up to 15% of the energy needed during intense exercise.

Accepted Answer

A) True 
 B)False

Question 8

Depending on the intensity and duration of activity,amino acids may contribute no more than ________ of the energy needed.

Accepted Answer

A) 1% 
B) 6% 
C) 10% 
D) 20% 
A) 1% 
B) 6% 
C) 10% 
D) 20%

Question 9

Studies demonstrate that supplements of androstenedione and dehydroepiandrosterone are not effective in raising testosterone concentrations in the body.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following BEST describes exercise?

Accepted Answer

A) any movement produced by muscles that increases energy expenditure 
B) maximal force or tension level that can be produced by a muscle group 
C) physical activity that is purposeful,planned,and structured 
D) ability to move a joint fluidly through the complete range of motion 
A) any movement produced by muscles that increases energy expenditure 
B) maximal force or tension level that can be produced by a muscle group 
C) physical activity that is purposeful,planned,and structured 
D) ability to move a joint fluidly through the complete range of motion

Question 11

Dizziness brought on by standing too long in the heat or suddenly stopping exercising is referred to as:

Accepted Answer

A) heat syncope. 
B) heat cramps. 
C) heat exhaustion. 
D) heat stroke. 
A) heat syncope. 
B) heat cramps. 
C) heat exhaustion. 
D) heat stroke.

Question 12

For physical activity to improve general health and fitness,each session should be at least 10 minutes without interruption.

Accepted Answer

A) True 
 B)False

Question 13

Which component of physical fitness does stretching improve?

Accepted Answer

A) cardiorespiratory fitness 
B) flexibility 
C) body composition 
D) blood insulin levels 
A) cardiorespiratory fitness 
B) flexibility 
C) body composition 
D) blood insulin levels

Question 14

Calcium intakes are inadequate for most women in the United States,including both sedentary and non-sedentary women.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following activities would have the biggest positive impact on a person's cardiorespiratory fitness?

Accepted Answer

A) weightlifting 
B) yoga 
C) walking 
D) push-ups 
A) weightlifting 
B) yoga 
C) walking 
D) push-ups

Question 16

The formula "220 minus age":

Accepted Answer

A) represents the lower threshold for an optimal training heart rate. 
B) should be used only by athletes as their training heart rate. 
C) is a rough estimate of your maximal heart rate. 
D) represents the target heart rate for effective cardiorespiratory training. 
A) represents the lower threshold for an optimal training heart rate. 
B) should be used only by athletes as their training heart rate. 
C) is a rough estimate of your maximal heart rate. 
D) represents the target heart rate for effective cardiorespiratory training.

Question 17

Lactic acid is a useless by-product of high-intensity exercise.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is the BEST source of energy for vigorous athletic training?

Accepted Answer

A) simple sugars 
B) lean meats 
C) fats 
D) whole grains 
A) simple sugars 
B) lean meats 
C) fats 
D) whole grains

Question 19

Identify and discuss four health benefits of regular physical activity.

Accepted Answer

1. Improved cardiovascular health: Regul

Question 20

At rest,the body's fuel source is primarily:

Accepted Answer

A) protein. 
B) carbohydrate. 
C) fat. 
D) vitamins and minerals. 
A) protein. 
B) carbohydrate. 
C) fat. 
D) vitamins and minerals.

Exam 18: Nutrition and Physical Activity: Keys to Good Health

Thirst is a very reliable indicator of dehydration.

Which of the following has been shown to cause "feminization" in men and "masculinization" in women?

Anaerobic metabolism of glucose fuels the muscles during short-term exercise.

During anaerobic glycolysis,each molecule of glucose produces ________ ATP molecules.

Which of the following components of physical fitness allows the heart,lungs,and blood vessels to support the work of our muscles?

Carbohydrate loading maximizes the amount of ________ stored in skeletal muscles.

Protein can contribute up to 15% of the energy needed during intense exercise.

Depending on the intensity and duration of activity,amino acids may contribute no more than ________ of the energy needed.

Studies demonstrate that supplements of androstenedione and dehydroepiandrosterone are not effective in raising testosterone concentrations in the body.

Which of the following BEST describes exercise?

Dizziness brought on by standing too long in the heat or suddenly stopping exercising is referred to as:

For physical activity to improve general health and fitness,each session should be at least 10 minutes without interruption.

Which component of physical fitness does stretching improve?

Calcium intakes are inadequate for most women in the United States,including both sedentary and non-sedentary women.

Which of the following activities would have the biggest positive impact on a person's cardiorespiratory fitness?

The formula "220 minus age":

Lactic acid is a useless by-product of high-intensity exercise.

Which of the following is the BEST source of energy for vigorous athletic training?

Identify and discuss four health benefits of regular physical activity.

At rest,the body's fuel source is primarily:

The Science of Nutrition: Linking Food, function, and Health

Designing a Healthful Diet

The Human Body: Are We Really What We Eat

Carbohydrates: Plant-Derived Energy Nutrients

in Depth: Alcohol

Lipids: Essential Energy-Supplying Nutrients

Vitamins and Minerals: Micronutrients With Macro Powers

Phytochemicals

Disordered Eating

Proteins: Crucial Components of All Body Tissues

Metabolism: From Food to Life

Nutrients Involved in Energy Metabolism

Nutrients Involved in Fluid and Electrolyte Balance

Nutrients Involved in Antioxidant Function and Vision

Nutrients Involved in Bone Health

Nutrients Involved in Blood Health and Immunity

Achieving and Maintaining a Healthful Body Weight

Consumer Issues: Food Safety, Production, and Impact on the Environment

Nutrition Through the Life Cycle: Pregnancy and the First Year of Life

Nutrition Through the Life Cycle: Childhood and Adolescence

Nutrition Through the Life Cycle: The Later Years

Global Nutrition

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