Exercise Physiology quizzes
How your body fuels movement, responds to exercise, and uses lactate as an energy source rather than waste.
2 quizzes
73 questions
Quizzes in this topic
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Exercise Physiology: Energy systems: ATP-PCr, glycolytic, oxidative · ATP and the Phosphagen System
How muscles get instant energy from ATP and phosphocreatine, why it runs out in seconds, and what that means for sprints, rest and creatine.
23 questions -
Exercise Physiology: Why Lactate Is Not the Villain
A tour of how your body fuels, cools, breathes and adapts during exercise, and the myths it quietly overturns.
50 questions
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From Exercise Physiology: Energy systems: ATP-PCr, glycolytic, oxidative · ATP and the Phosphagen System
What does phosphocreatine do during intense exercise?
- Breaks down stored fat for fuel
- Rapidly donates phosphate to rebuild ATP
- Carries oxygen into the muscle cell
Show the answer
Answer: Rapidly donates phosphate to rebuild ATP
Phosphocreatine hands its phosphate to ADP in a single fast step, regenerating ATP almost instantly.
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