A major disadvantage of the glycolytic system for supplying ATP to muscle fibers is
A) the efficiency of glycolysis compared to aerobic respiration.
B) the long period of time that is required before it can start supplying ATP.
C) that it leads to the accumulation of lactic acid.
D) that it requires numerous mitochondria.
E) that it requires a large supply of oxygen, and therefore a high density of capillaries

Question

Quizplus · Accepted Answer

The glycolytic system produces ATP quickly but leads to the accumulation of lactic acid, which can cause muscle fatigue and discomfort. Additionally, the glycolytic system is less efficient than aerobic respiration in generating ATP. The time required to start supplying ATP is actually quite short compared to aerobic respiration, as it can begin producing ATP within seconds of muscle contraction. The need for numerous mitochondria and a high density of capillaries is indicative of the oxidative system, not the glycolytic system.

A Major Disadvantage of the Glycolytic System for Supplying ATP