Chapter 11

Question 1

prolonged, low intensity exercise uses mainly ______ muscle fibers.

Answer 1

Type I

Question 2

Glycogen is the primary source of glucose for ATP production in muscles during intense activity that lasts for less than 2 minutes.

Answer 2

True

Question 3

Carbohydrate loading is for strength-trained athletes.

Answer 3

False

Question 4

The amount of ATP stored in a muscle cell can keep a muscle active for about

Answer 4

1-4 seconds.

Question 5

Which substance is considered to be a proven ergogenic aid that increases athletic performance?

Answer 5

None of these substances increase athletic performance.

Question 6

An example of a food to avoid in a pre-game meal is

Answer 6

hot dogs.

Question 7

Athletes, particularly female and young athletes, need to increase their intake of ________ to increase red blood cell production.

Answer 7

iron

Question 8

Lactic acid from anaerobic glycolysis is transported by the blood to the liver where it will be

Answer 8

resynthesized to glucose.

Question 9

Slow, steady aerobic activity uses mostly fat as an energy source.

Answer 9

True

Question 10

The site of greatest energy production in a muscle cell is the

Answer 10

mitochondria

Question 11

The Borg Scale of Perceived Exertion is used to determine

Answer 11

exercise intensity.

Question 12

Amino acids can be used as a primary fuel for muscles.

Answer 12

False

Question 13

When an athlete’s maximal performance is desired, carbohydrates are a more efficient fuel than fat because

Answer 13

carbohydrate is oxidized more rapidly than fatty acids.

Question 14

Warm-up and cool-down should be parts of your exercise routine.

Answer 14

True

Question 15

Anabolic steroids are

Answer 15

synthetic versions of male sex hormones.

Question 16

The disadvantage of anaerobic glycolysis in high-intensity muscle contractions is that

Answer 16

ATP production cannot be sustained for long events.

Question 17

When conditions in the exercising muscle are anaerobic, metabolism of glucose results in

Answer 17

the formation of lactate.

Question 18

A good way to determine the intensity of exercise is to measure the amount of oxygen a person consumes.

Answer 18

true

Question 19

In order for an individual to maintain an exercise regimen it helps if

Answer 19

the exercise is built into a daily routine.

Question 20

At very high intensities of exercise, most of the energy the body uses is supplied by

Answer 20

muscle glycogen.

Question 21

Thirst is an excellent indicator of fluid needs during exercise.

Answer 21

False

Question 22

Glucose is stored in muscle tissue as

Answer 22

glycogen.

Question 23

According to the 2008 Physical Activity Guidelines for Americans substantial health benefits occur when adults engage

Answer 23

in 150 minutes of moderate intensity exercise each week.

Question 24

During muscle-building regimes, how much protein should athletes consume?

Answer 24

1.5g-1.7g/kg

Question 25

After 1½ to 2 hours of exertion, drinks with 10% to 20% solution of carbohydrates

Answer 25

take longer to absorb and are not recommended.

Question 26

Restoration of muscle glycogen occurs when _____ grams of carbohydrates per kilogram of body weight are consumed 30 minutes after exercise and again 2 hours after exercise.

Answer 26

1.0 - 1.5

Question 27

The majority of stored energy in the body is in the form of

Answer 27

triglycerides.

Question 28

Hyponatremia is a condition caused by

Answer 28

overconsumption of water.

Question 29

The benefits of participating in different types of exercise are

Answer 29

strengthening a variety of muscle groups.
reducing the chances of injury.
promoting activities that are more interesting and thus more likely to be continued.
All of these responses are correct

Question 30

A response called hypertrophy occurs when

Answer 30

muscles enlarge after being made to work repeatedly

Question 31

Training and exercise are beneficial because they

Answer 31

increase the number of mitochondria in muscle cells.

Question 32

Fluids should be consumed _________ an athletic event.

Answer 32

before, during, and after. all are correct

Question 33

The best exercise is one you want to continue to do.

Answer 33

true