When an Individual Is Exercising Heavily and When the Muscle

question 60

Multiple Choice

When an individual is exercising heavily and when the muscle becomes oxygen-deprived, muscle cells convert pyruvate to lactate. What happens to the lactate in skeletal muscle cells?

• A) It is converted to NAD⁺.
• B) It produces CO₂ and water.
• C) It is taken to the liver and converted back to pyruvate.
• D) It reduces FADH₂ to FAD⁺.
• E) It is converted to alcohol.

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