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.

Question

Quizplus · Accepted Answer

Lactate produced in skeletal muscle cells is transported to the liver where it is converted back to pyruvate through a process called gluconeogenesis, which can then be used for energy production. This process helps to prevent a buildup of lactate in the muscle, which can lead to muscle fatigue and cramping.

When an Individual Is Exercising Heavily and When the Muscle