Lactose operon produces enzymes

Lactose operon (model proposed by Jacob and Monad) produces three enzymes - $\mathrm{\beta }$- galactosidase (z), permease (y), transacetylase (a). $\mathrm{\beta }$- Galactosidase (z) is responsible for the splitting of lactose into glucose and galactose. Permease (y) is required in entry of the lactose/galactose. Transacetylase (a) transfers an acetyl CoA to $\mathrm{\beta }$- Galactosides.