there is a cellular sack that is impermeable to starch molecules and is filled with a solution, comprised of 20% starch. it is placed in a container of 100% distilled water?  a) what term descibes the solution in the sack compared to the solution surronding it? i) hypertonic ii) hypotonic iii) isotonic b) in which direction will the water molecules move faster? i) into the cell ii) out of the cell iii) same in both iv) not at all c) in which direction will the starch molecules move? i) into the cell ii) out of the cell iii) same in both iv) not at all  i'm stuck on this hw question. i think the answers are a) hypertonic, b) out of the cell, and c) not at all. but i'm not sure if those are correct and need clarification on this, thank you!

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Q: d) hypertonic

A:

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Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.