Chapter 5 - Energy Systems

Question 1

State the intensity in terms of max HR for the following energy systems.
ATP-PC system
Anaerobic Glycolisis
Aerobic Glycolisis

Answer 1

ATP-PC system: 95% max HR
Anaerobic Glycolisis: 85-95% max HR
Aerobic Glycolisis: <85% max HR

Question 2

State the period of which the following energy systems are dominant.
ATP-PC system
Anaerobic Glycolisis
Aerobic Glycolisis

Answer 2

ATP-PC system : 0-6 sec
Anaerobic Glycolisis: 6-30 sec
Aerobic Glycolisis: 30+ sec

Question 3

State the duration of event in which the aerobic system is dominant.

Answer 3

75 + sec

Question 4

State the depletion time of the following energy systems.
ATP-PC system
Anaerobic Glycolisis
Aerobic Glycolisis

Answer 4

ATP-PC system : 10-20sec
Anaerobic Glycolisis: 2-3 min?
Aerobic Glycolisis: infinite

Question 5

State the time of peak power for the following energy systems.
ATP-PC system
Anaerobic Glycolisis
Aerobic Glycolisis

Answer 5

ATP-PC system: 2-4 seconds
Anaerobic Glycolisis: 10-15 seconds
Aerobic Glycolisis: 1-1.5 minutes

Question 6

State the yeild for the following energy systems.
ATP-PC system
Anaerobic Glycolisis

Answer 6

ATP-PC system: 0.7

Anaerobic Glycolisis: 2

Question 7

What is better for a continuous insurance athlete a higher Vo2 or a higher L.I.P.?

Answer 7

Higher L.I.P.

Question 8

Where does reactions of the ATP-PC system occur.

Answer 8

Myosin Crossbridges

Question 9

Where does anaerobic glycolysis occur?

Answer 9

Cytoplasm of muscle in organelle called the cytosol

Question 10

Where does aerobic glycolysis occur?

Answer 10

Mitochondria

Question 11

What is an oxidative enzyme?

Answer 11

Increase rate of chemical reactions during aerobic energy production (glucose and fats).

Question 12

What is a glycolytic enzyme?

Answer 12

Increases the rate of chemical reactions during glycolysis.

Question 13

What is haemoglobin and what does it do?

Answer 13

It is present in the red blood cells and attracts and transports O2.

Question 14

What is Myoglobin?

Answer 14

Myoglobin is in the skeletal muscle and it attracts the oxygen from the haemoglobin.

Question 15

What % of VO2 max does L.I.P. occur for untrained and trained individuals.

Answer 15

Untrained: 55-60% of VO2 max
Trained: 75-90% of VO2 max

Question 16

State the energy (ATP) per molecule for the following food fuels during aerobic glycolysis:
Glycogen:
Fats (triglycerides):
Protein:

Answer 16

Glycogen: 36-38
Fats (triglycerides): 147 * 3 = 441
Protein: depends

Question 17

What is the oxygen cost (litres per mole of ATP produced) for the following fuels;
Glycogen:
Fats (triglycerides):
Protein:

Answer 17

Glycogen: 3.5
Fats (triglycerides): 5.5
Protein: 8.0+

Question 18

What does lactate inflection point reflect?

Answer 18

Reflects balance between lactate entry into and lactate removal, from the blood.