In the degradation of maltose to two glucose molecules: A. the enzyme, maltase, is the subtrate. B. maltose is the product. C. maltose is the subtrate. D. maltase is the product. water is the substrate. D. maltase is the product.E. water is the substrate. Solution C. maltose is the subtrate. Substrate is converted to product by the enzyme. Here maltase is the substrate and Glucose is the product.