If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.
A) fatty acid
B) phosphocreatine
C) lactic acid
D) glucose

Question

If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.​
A) ​fatty acid
B) ​phosphocreatine
C) ​lactic acid
D) ​glucose

Quizplus · Accepted Answer

When oxygen is not available to a muscle cell during exercise, anaerobic respiration occurs and pyruvic acid is converted to lactic acid. Lactic acid builds up in the muscle cell and can cause fatigue and muscle soreness.

If Oxygen Is Not Available to a Muscle Cell, Pyruvic