During Strenuous Exercise,you May Notice That Your Muscles Burn

question 7

Multiple Choice

During strenuous exercise,you may notice that your muscles burn.Which of the following statements best explains this phenomenon?

• A)Proteins are being digested to provide energy.
• B)Carbon dioxide is building up in muscle and changing the pH.
• C)Without oxygen, pyruvate is being converted to lactic acid.
• D)ADP is accumulating, which produces a burning sensation.
• E)Pyruvic acid causes muscle pain.

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