Five dialysis bags, constructed of a type of membrane that is permeable to water and impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 M sucrose solution. At 10-minute intervals, the bags were massed (weighed), and the percent change in mass of each bag was graphed. Which line in the graph represents the bag that contained a solution isotonic to the 0.6 M solution at the beginning of the experiment?
A) A
B) B
C) C
D) D
E) E

Question

Five dialysis bags, constructed of a type of membrane that is permeable to water and impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 M sucrose solution. At 10-minute intervals, the bags were massed (weighed), and the percent change in mass of each bag was graphed.  Which line in the graph represents the bag that contained a solution isotonic to the 0.6 M solution at the beginning of the experiment?
A) A 
B) B 
C) C 
D) D 
E) E

Quizplus · Accepted Answer

The line representing the bag containing an isotonic solution will remain constant over time, indicating no net movement of water in or out of the bag. Based on the graph, line C remains relatively unchanged, indicating an isotonic solution throughout the experiment.

Five Dialysis Bags, Constructed of a Type of Membrane That