<P> Infant mammals nurse on their mothers to drink milk , which is rich in lactose . The intestinal villi secrete the enzyme called lactase ( β - D - galactosidase ) to digest it . This enzyme cleaves the lactose molecule into its two subunits , the simple sugars glucose and galactose , which can be absorbed . Since lactose occurs mostly in milk , in most mammals , the production of lactase gradually decreases with maturity due to a lack of continuing consumption . </P>
<P> Infant mammals nurse on their mothers to drink milk , which is rich in lactose . The intestinal villi secrete the enzyme called lactase ( β - D - galactosidase ) to digest it . This enzyme cleaves the lactose molecule into its two subunits , the simple sugars glucose and galactose , which can be absorbed . Since lactose occurs mostly in milk , in most mammals , the production of lactase gradually decreases with maturity due to a lack of continuing consumption . </P>
what are the products of the breakdown of lactose
what are the products of the breakdown of lactose
glucose galactose
glucose galactose