Anaerobic Respiration in Muscles: Products, Effects, and Fatigue

End product: Lactic acid (lactate)

Effect: Muscle fatigue

During anaerobic respiration, glucose is broken down in the absence of oxygen. This process produces lactic acid as a byproduct. Lactic acid accumulates in muscle tissue, leading to muscle fatigue and soreness. This is why we experience muscle fatigue during intense exercise when the demand for energy exceeds the oxygen supply.