6. Which of these are all advantages of the PC system
Does require oxygen, no fatiguing by products, its a long reaction, PC is readily available in the muscles and re-synthesises itself quickly.,
Does not require oxygen, PC is readily available in the muscles and is re-synthesised quickly, simple reaction releases energy quickly for short ballistic movements, the system is automatically stimulated by an increase in ADP.
Does not require oxygen, PC is quickly re-synthesised, no fatiguing bi-products, produces large amounts of energy, produces energy for long lasting activities, PC readily available in the muscles, simple reaction means ATP is released quickly
7. Only 2 ATP are produced for each PC molecule, only lasts for 8-10 seconds, only small amounts of ADP and PC can be stored in the muscles
False
True
8. Which is the correct process?
Glycogen is converted into glucose by glucogen phosphorylase, this is then converted into pyruvic acid by phosphofructokinase, and finally lactate dehydrogenase converts the pyruvic acid into lactic acid
Glycogen phosphorylase converts glycogen to glucose, Phosphofructokinase converts glucose into pyruvic acid, and then lactate dehydrogenase converts pyruvic acid into acetyl coA
9. Training in the lactic acid system delays OBLA by increasing the bodies tolerance to lactic acid, it also increases the amount of glucose that can be stored in the body, which means that athletes can work at a higher intensity for shorter periods
False
True
10. Large stores of glycogen in the muscles, 2 molecules of ATP for each glucose molecule, shorter reaction time than aerobic system, PFK and GP automatically stimulated by a decrease in PC, provides energy for up to 180 seconds of high intensity exercise are
False
True
11. Not as quick as the PC system, produces lactic acid as a fatiguing bi-product, stimulates pain receptors causing muscle pain, reduces PH inhibiting enzyme action, are all disadvantages of the lactic acid system.
True
False
12. Large glycogen and FFA stores in the muscles, FFA's provide large amounts of energy when there's sufficient oxygen, produce 38 ATP for each molecule of glucose, last for hours of low intensity exercise, no fatiguing bi products. These are all advantages o
True
False
13. The rate of resynthesis of ATP is shorter in the aerobic system due to a series of complex reactions, FFA's require 15% more oxygen than glucose, it takes 3 mins to function due to the delay of Oxygen availabilty from the CV system, limited in high intens
True
False
14. Which are benefits of training in the aerobic system?
All of them
Increased stores of glycoge in the muscles and liver
Early use of FFA
Increased mobility of aerobic enzymes
First and second ones.
15. The energy continuum is the combination of the energy systemes used, depending on the duration or intensity of the exercise
False
True
16. The ATP/PC system can be used more than once in a game due to PC being replenished
True
False
17. How long must aerobic exercise be sustained for if FFA's are to be burned?
25 mins
5 mins
10 mins
20 mins
15 mins
18. How much as a percentage of the performers V02 max would an untrained athlete reach OBLA at?
50-56%
40-50%
56-63%
19. How much as a percentage of the performers V02 max would a trained athlete reach OBLA at?
