The sole source of energy is ____. The enzyme ____ breaks the ATP into ADP, a ____ and ____. After ____ sec the ATP is depleted. During ____ intensity exercise the ____ pathway is dominant. This last for up to ____ secs. The reaction takes place in the muscle ____. The fuel is Phosphate Creatine. The enzyme is Creatine Kinase. There are 2 stages to the system. Stage 1 - ____. Stage 2 - ____. The energy yield is ____. This system takes 3 minutes to fully recover. During moderately high intensity exercise the ____ pathway is dominant. This system uses glucose as it's fuel. The process of ____ results in 2 ATP being produced as well as ____. As the pathway is ____ (no oxygen present), the enzyme lactate dehydrogenase (LDH) coverts the pyruvate into blood lactate. The anaerobic enzymes become denatured (no more glycolysis), as lactic acid ____ the ph levels of the blood. This all takes place in the muscle sarcoplasm. After____ sec this pathway fatigues. The energy yield is 1 glucose : 2 ATP. This system takes over ____ to fully recover During ____ intensity exercise the aerobic system is dominant. The system requires ____. There are 3 stages to this system. Stage 1 - ____ - muscle glycogen is converted into blood glucose, then broken down into ____ ATP and ____ Stage 2 - ____ - The pyruvate is joined by Fatty Free Acids and enters the ____. The 3 by-products are Carbon Dioxide, ____ and 2 ATP Stage 3 - ____ - The Hydrogen (from stage 2) is oxidised. This produces ____ and up to 34 ATP This system can fatigue after ____, as the glycogen is depleted, this can take up to 24 hours to fully recover. The energy yield is ____

Energy Systems

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