ATP-PC system
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Last updated 10:51 AM on 4/7/26
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13 Terms
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Three energy systems which break down fuels to provide energy for ATP resynthesis
ATP-PC system
glycolytic system (lactic acid)
aerobic system
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Type of reaction
exothermic
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Site of reaction
sarcoplasm
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Fuel used
PC
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Enzymes
CK
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ATP yield
1
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By products
none
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Activity intensity
very high
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Duration of system
3-10 seconds
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Strengths
no delay for O2
PC is available in muscle cells
no fatiguing by products
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Weaknesses
only lasts up to 10s
low ATP yield
small PC stores
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Process of it
ATP levels drop
ADP+P levels rise
CK breaks down PC
produces energy and 1 ATP
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Recovery time
50% within 30s
100% in 3 mins
