Which of the following are true of nuclear trafficking? Select one or more: a. RAN-GTP (when bound to GTP) LEAVES the nucleus. b. includes importins which help move proteins into the nucleus and exportins that move proteins out of the nucleus. c. Ran-GDP (When bound to GDP) enters the nucleus d. the NLS is cleaved upon import to the nucleus

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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.