When performing exercises, the muscles of both arms consume 20 kJ of energy in 1 min. Define

When performing exercises, the muscles of both arms consume 20 kJ of energy in 1 min. Define:
A) How much will the muscles consume in 15 minutes, provided that oxygen is delivered to the muscles in a sufficient amount?
B) Does lactic acid accumulate in the muscles?

Answer: 35.5 g of glucose; no, because everything is oxidized.

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