Cindy conducts an experiment on diffusion using cells from the imaginary plant b. florensis. she notes that the cells are only made up of sugar and water and the cells contain a 5% sugar solution in them. however, the membranes are only permeable to water. she makes three solutions: pure water, 5% sugar solution and 10% sugar solution. in this experiment, she wishes to see if the solutions will change the mass of the cells in the plant. she places the cells in the solutions and after 20 minutes she makes individual slides of some of the cells from the three solutions, and she views them under a microscope. what is the dependent variable in this experiment?