Please answer items number 4 to 6. This is not a writing assignment. Please have the answer encoded and not handwritten.   4. How is ATP used in the bottom diagram? Why is it essential? 5. Why do the molecules "want" to move across the membrane in the first diagram? 6. Why is it important for molecule to able to travel into and out of your body's cells?

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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.