Final answer:
The lactic acid system is also known as the glycolytic system, which generates energy anaerobically by converting glucose to lactic acid when oxygen is limited, enabling continued ATP production.
Step-by-step explanation:
The lactic acid system is also known as the glycolytic system. This system operates under anaerobic conditions, meaning it doesn't require oxygen to function. During high-intensity exercise, when the oxygen supply is limited, the body relies on the glycolytic system to generate ATP, the cellular energy currency. The glycolytic system breaks down glucose for energy, forming pyruvate.
This allows glycolysis to continue making ATP even when the aerobic systems cannot meet the energy demands. On the other hand, the Krebs cycle (also known as the citric acid cycle or tricarboxylic acid cycle), oxidative phosphorylation, and phosphorylation are processes related to aerobic energy production, where oxygen is required to produce ATP.