Question 1

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

Accepted Answer

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

Question 2

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 3

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

Accepted Answer

A) True 
 B)False

Question 4

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 5

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

Question 6

Which component of physical fitness does stretching improve?

Accepted Answer

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

Question 7

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.

Question 8

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 9

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%

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

Thirst is a very reliable indicator of dehydration.

Accepted Answer

A) True 
 B)False  False

Question 14

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

Accepted Answer

A) True 
 B)False  True

Question 15

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

Question 16

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

Question 17

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

Question 18

Identify and discuss four health benefits of regular physical activity.

Accepted Answer

1. Improved cardiovascular health: Regul...

Question 19

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

Question 20

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.

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which component of physical fitness does stretching improve?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Thirst is a very reliable indicator of dehydration.

Correct AnswerverifiedFalse

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

Correct AnswerverifiedTrue

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

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

Which of the following BEST describes exercise?

Correct AnswerverifiedShow Answer

Identify and discuss four health benefits of regular physical activity.

Correct AnswerAnswered by ExamLex AI1. Improved cardiovascular health: Regul...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

The formula "220 minus age":

Correct AnswerverifiedShow Answer

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False

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True

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A

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Answered by ExamLex AI
1. Improved cardiovascular health: Regul...
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