Question

multiple select question
select all that apply
solution a contains 10 grams of sucrose per liter of water. it is separated by a membrane that is not permeable to sucrose from solution b that contains 10 grams of sucrose per liter of water. which of the below statements describes the movement of materials that will occur in this system?
□ sucrose molecules will move from solution b to solution a.
□ there will be no net movement of water molecules in either direction.
□ there will be no movement of sucrose in either direction.
□ water molecules will move from solution b to solution a.
□ sucrose molecules will move from solution a to solution b.
□ water molecules will move from solution a to solution b.
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Explanation:

1. First, analyze the membrane permeability: The membrane is not permeable to sucrose, so sucrose molecules cannot move across (so "There will be no movement of sucrose in either direction" is correct, and options about sucrose moving are wrong).
2. Then, for water: Solution A and Solution B have the same sucrose concentration (10 grams per liter of water), so the water potential is equal. Thus, there is no net movement of water (so "There will be no NET movement of water molecules in either direction" is correct, and options about net water movement are wrong). Also, individual water molecules still move randomly, but net movement is zero. The option "Water molecules will move from Solution B to Solution A" and "Water molecules will move from Solution A to Solution B" are about net movement, which is zero, but the statement "There will be no NET movement..." is correct. The sucrose movement is impossible, so "There will be no movement of sucrose in either direction" is correct.

Answer:

• There will be no NET movement of water molecules in either direction.
• There will be no movement of sucrose in either direction.