Question

multiple choice question
solution a contains 30 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?

there will be a net movement of water from solution a to solution b.
there will be a net movement of sucrose from solution b to solution a.
there will be a net movement of water from solution b to solution a.
there will be a net movement of sucrose from solution a to solution b.

Explanation:

1. First, recall the concept of osmosis: water moves across a semi - permeable membrane from an area of lower solute concentration (higher water potential) to an area of higher solute concentration (lower water potential).
2. Solution A has 30 grams of sucrose per liter, and Solution B has 10 grams of sucrose per liter. So, Solution A has a higher solute concentration (lower water potential) and Solution B has a lower solute concentration (higher water potential).
3. The membrane is not permeable to sucrose, so sucrose cannot move. Water will move from the area of higher water potential (Solution B) to the area of lower water potential (Solution A) to try to equalize the solute concentrations on both sides.

Answer:

There will be a net movement of water from Solution B to Solution A.