In the lab, you use a special balloon that is permeable to water but not sucrose to make an "artificial cell." The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40% sucrose and 60% water. Which of the following will occur?
A) Water will leave the balloon.
B) Water will enter the balloon.
C) Sucrose will leave the balloon.
D) Sucrose will enter the balloon.

Question

Quizplus · Accepted Answer

Water will move from an area of lower concentration (the balloon with 20% sucrose solution) to an area of higher concentration (the beaker with 40% sucrose solution) in an attempt to establish equilibrium. Since the balloon is permeable to water but not to sucrose, only water will move across the membrane, resulting in the balloon shrinking as water leaves. Sucrose will not move across the membrane.

In the Lab, You Use a Special Balloon That Is