Question

due to insufficient oxygen as in muscles the glucose is broken down into ____end_____

Answer 1

The lack of oxygen inmuscles makes them use anaerobic respiration.Glucose is broken down to lactic acid and releases much less energy. ... At theend of the exercise lactic acid is broken down usingoxygen and the musclesrecover. The volume ofoxygen needed to do this is called the oxygen debt.
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Answer 2

Hi mate here is ur answer:-

During insufficient oxygen to the muscles the glucose breaks into ethanol and 2 ATP.

Hope this may help you......❤