During a 100-meter sprint, an athlete's leg muscles undergo fermentation due to limited oxygen. Which three-carbon organic compound accumulates in the tissue?
Q1. During a 100-meter sprint, an athlete's leg muscles undergo fermentation due to limited oxygen. Which three-carbon organic compound accumulates in the tissue?
Answer: Lactic acid
Explanation: Lactic acid is the 3-carbon product of anaerobic respiration in muscles. Pyruvate is the precursor but does not accumulate as the end-product.