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 sarcoplasm. 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 Pyruvate Stage 2 - ____ - The pyruvate is joined by Fatty Free Acids and enters the ____. The 3 by-products are Carbon Dioxide, Hydrogen and 2 ATP Stage 3 - ____ - The Hydrogen (from stage 2) is oxidised. This produces H2O and up to 34 ATP This system can fatigue after 90 mins, as the glycogen is depleted, this can take up to 24 hours to fully recover. The energy yield is ____

Easier- Energy Systems

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