If you run as fast as you can, your muscles may begin to feel weak and have a burning sensation. Explain what is occuring in your muscle cells that accounts for this muscle fatigue. a inadequate supply of glucose to muscle cells leads to alcohol fermentation b inadequate supply of oxygen to muscle cells leads to lactic acid fermentation c excessive supply of ATP to muscle cells leads to hypertonic conditions d excessive supply of oxygen to muscle cells leads to mitochondrial autolysis

Answer 1

The correct explanation for the muscle fatigue you're experiencing when running as fast as you can relates to inadequate oxygen supply and lactic acid fermentation. Therefore, the answer is:

b. inadequate supply of oxygen to muscle cells leads to lactic acid fermentation.

When you engage in intense exercise, your muscles require more energy than can be produced through aerobic respiration due to insufficient oxygen supply. As a result, your muscle cells switch to anaerobic respiration, which leads to the process of lactic acid fermentation.

In lactic acid fermentation, glucose is broken down to produce ATP (energy) without oxygen, resulting in lactic acid as a byproduct. The accumulation of lactic acid in the muscle tissue can lead to a burning sensation and contribute to muscle fatigue. Eventually, this can impair muscle function until the lactic acid is cleared from the muscles and adequate oxygen is restored.