Compare the by-products of TWO different energy systems. (4 marks)
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Sample Answer
Similarities:
- Both ATP-PCr and glycolytic systems produce by-products during ATP generation.
- Both by-products must be managed by the body for continued performance.
Differences:
- ATP-PCr produces creatine and phosphate which cause no muscle fatigue or performance impairment.
- Glycolytic system generates lactic acid which creates burning sensation and impairs muscle contraction.
- ATP-PCr by-products remain in muscle cells for immediate reconversion within minutes.
- Lactic acid must be transported via bloodstream to the liver for removal, taking much longer.
- Chemical nature determines impact: harmless phosphates versus performance-limiting acid.
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Sample Answer
Similarities:
- Both ATP-PCr and glycolytic systems produce by-products during ATP generation.
- Both by-products must be managed by the body for continued performance.
Differences:
- ATP-PCr produces creatine and phosphate which cause no muscle fatigue or performance impairment.
- Glycolytic system generates lactic acid which creates burning sensation and impairs muscle contraction.
- ATP-PCr by-products remain in muscle cells for immediate reconversion within minutes.
- Lactic acid must be transported via bloodstream to the liver for removal, taking much longer.
- Chemical nature determines impact: harmless phosphates versus performance-limiting acid.