Calculation question for ED50 for action of acetylcholine in guinea pig ileum


Three part question based on data for the action of acetylcholine on isolated guinea pig ileum in vitro. The question shows a plot of log dose (of ACh) against response (contraction amplitude). Part one requires the user to select the optimum two points on the graph to measure the slope; Part two requires calculation of the slope and Part three requires calculation of the ED50. Helpful feedback is given throughout.


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CAL Package

Guinea-Pig Ileum