The reactant of lactic acid fermentation and the product that builds up during intense exercise is glucose.
Homolactic Fermentation in Muscle Cells
Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate, which is lactic acid in solution.
Glucose is the simple sugar reactant used in this type of homolactic fermentation, instead of lactose used in the case of bacteria.
This process of energy production is employed by muscle cells when oxygen levels are low, such as during periods of extreme exercise.
