Idon't understand anythingsome studies suggest that drinking cranberry juice may prevent the development of urinary tract infections caused by bacterial cells, which are prokaryotes. researchers hypothesize that a chemical in cranberry juice may stop the bacteria from attaching to cells in the wall of the urinary bladder. researchers grew the eukaryotic bladder cells in culture and exposed them to a solution containing bacteria. the cells were then treated with a solution of different juices or water to determine if the juices interfered with bacterial attachment. the results are shown in the graph. 1. what is the operational definition of the dependent variable in this experiment? 2. which juices may be effective in preventing urinary tract infections?