3. Considering the effect of soap on the oil and water solution in Experiment 1, and soap's effect on greasy dishes, describe the action of the soapy extraction buffer on the cellular and nuclear membranes. Correctly use the following terms: amphipathic, non-polar, polar. 3. Describe what happened when you added the alcohol to the strawberry (or banana) filtrate. What does this tell you about the polarity of the alcohol and the polarity of the DNA? Recall from the Chemistry lab with M&Ms that "like dissolves like."

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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.