D) glucose and lactic acid
- Homolactic fermentation also occurs in muscle cells and results in the formation of two molecules of lactic acid from the breakdown of the reactant.
- Glucose is the simple sugar reactant used in this type of homolactic fermentation, instead of lactose used in the case of bacteria.
- The reactants are pyruvate, NADH and a proton.
- This process of energy production is employed by muscle cells when oxygen levels are low, such as during periods of extreme exercise.
- The lactic acid end product is also one of the factors responsible for muscle soreness after exercise.
- Thus, reactant is glucose while product is lactic acid for lactic acid fermentation.
Therefore, the correct option is D.
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