When the reaction given below is balanced with the lowest whole number ratio, what is the value of A ? A H2SO4(aq) + B Ca(OH)2(aq) C H2O(l) + ???

Changes in pH may not only affect the shape of an enzyme but it may also change the shape or charge properties of the substrate so that either the substrate connot bind to the active site or it cannot undergo catalysis. In geneal enzyme have a pHoptimum. However the optimum is not the same for each enzyme