Question 1 is employed to degrade lactose in milk to produce lactose-free milk. The reaction mechanism for the hydrolysis of lactose can be described as follows: E+SESEP+GEPE+P where E refers to the enzyme S refers to lactose P refers to galactose G refers to glucose ES and EP are enzyme-substrate complexes k1,k1,k2,k3,k3 are the rate constants Derive a reaction rate expression for lactose (S) by using the steady state approximation approach. (15)