Solved by a verified expert:17. A researcher wants to determine what controls smooth muscle contractilityCase 1. First, while keeping other factors constant, he added a drug that specifically activated the activities of Rho kinase.a) what happened to the contractility of the cell? why?Case 2. To do further testing, he separately added a different reagent that could inhibit the activity of myosin light chain kinase.b) what happened to the cell contractility this time? why?Case 3. Then he repeated the above experiments in Case 1 when myosin light chain kinase activities were either increased or decreased.c) speculate the contractile state of the smooth muscle cell.