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HMS, BM EQ-Bank 155 MC

Which statement best explains why the aerobic system produces the most ATP?

  1. It has the fastest reaction rate
  2. It uses more glucose molecules
  3. It doesn't produce waste products
  4. It completes glucose breakdown
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\(D\)

Show Worked Solution
  • D is correct: The aerobic system completely breaks down glucose and allows for maximum ATP extraction (36-38 ATP) from each glucose molecule. Other systems only partially break down glucose.

Other Options:

  • A is incorrect: Aerobic system has slowest reaction rate of all 3 energy systems. ATP-PCr is fastest, followed by glycolytic then aerobic.
  • B is incorrect: The amount of glucose molecules used is not the determining factor in ATP production. It’s the completeness of the breakdown process.
  • C is incorrect: Aerobic system produces waste products (CO2 and H2O).