The product P2 can be converted either to product " Z " or product " R " through a biochemical pathway where each step is catalyzed by a specific enzyme (E3 - E10) as shown below. The metabolites (products) at each step are indicated. Note: An arrow means activation and a " T "means inhibition of the reaction. 1. What is the effect of Compound on Enzyme E4? ( / point) Of what is this an example? ( / point) Explain uning your own words why the cell may need such a regulatory mechanism. .