Energy for Exercise

Question 1

What is ATP?

Answer 1

Adenosine Triphosphate (ATP) is a high-energy compound which is the only immediately available source of energy for muscular contraction.

Question 2

What happens during ATP breakdown?

Answer 2

To exract energy from the ATP, an ezyme called ATPase is released. This stimulates the final high-energy bond to be broken. This is an endothermic reaction which leaves ADP and a single phosphate.

Question 3

What are the 3 energy systems?

Answer 3

• ATP-PC system
• Glycolytic (anaeobic) system
• Aerobic system

Question 4

What type of reaction occurs in the ATP-PC SYSTEM?

Answer 4

Anaerobic

Question 5

What is the site of the reaction in the ATP-PC SYSTEM?

Answer 5

Sarcoplasm

Question 6

What is the food fuel used in the ATP-PC SYSTEM?

Answer 6

Phosphocreatine

Question 7

What is the controlling enzyme in the ATP-PC SYSTEM?

Answer 7

Creatine Kinase

Question 8

What are the specific stages in the ATP-PC SYSTEM?

Answer 8

Coupled reaction

Question 9

What is the ATP yield in the ATP-PC SYSTEM?

Answer 9

1 : 1

Question 10

What are the by-products of the ATP-PC SYSTEM?

Answer 10

There aren’t any

Question 11

What type of reaction occurs in the GLYCOLYTIC SYSTEM?

Answer 11

Anaerobic

Question 12

What is the site of reaction in the GLYCOLYTIC SYSTEM?

Answer 12

Sarcoplasm

Question 13

What is the food fuel used in the GLYCOLYTIC SYSTEM?

Answer 13

Glycogen/ glucose

Question 14

What are the controlling enzymes in the GLYCOLYTIC SYSTEM?

Answer 14

PFK and LDH

Question 15

What is the ATP yield in the GLYCOLYTIC SYSTEM?

Answer 15

1 : 2

Question 16

What are the specific stages in the GLYCOLYTIC SYSTEM?

Answer 16

Glycolysis

Question 17

What are the by-products of the GLYCOLYTIC SYSTEM?

Answer 17

Lactic Acid

Question 18

What type of reaction occurs in the AEROBIC SYSTEM?

Answer 18

Aerobic

Question 19

What is the site of the reaction in the AEROBIC SYSTEM?

Answer 19

Sarcoplasm, Matrix and Cristae

Question 20

What is the food fuel used in the AEROBIC SYSTEM?

Answer 20

Glycogen/ glucose

Question 21

What is the controlling enzyme of the AEROBIC SYSTEM?

Answer 21

PFK

Question 22

What is the ATP yield of the AEROBIC SYSTEM?

Answer 22

1 : 38

Question 23

What are the specific stages of the AEROBIC SYSTEM?

Answer 23

• Glycolysis
• Krebs Cycle
• Electron transport chain

Question 24

What are the by-products of the AEROBIC SYSTEM?

Answer 24

Carbon Dioxide and Water

Question 25

What is the energy contiuum?

Answer 25

The relative contribution of each energy system to overall energy production depending on intensity and duration of the activity.

Question 26

What system is used for very high intensity?

Answer 26

The ATP-PC system will be predominant for activities under 10 seconds. It is contributing to 99% of ATP resynthesis.

Question 27

What system is used for high intensity?

Answer 27

The glycolytic system will be predominant when the duration of the activity is between 10 seconds and 3 minutes long. It is contributing to 60-90% of ATP resynthesis.

Question 28

What system is used for low - moderate intensity?

Answer 28

The aerobic system will be predominant where activity is moderate but constant. It contributes to 99% of ATP resynthesis.

Question 29

What is intermittent exercise?

Answer 29

Activity where the intensity alternates (e.g. work/ relief)

Question 30

What factors can affect the energy systems contribution to overall energy production?

Answer 30

- position of the player - tactics and stratagies - level of competition - structure of the game