9. Describe the role of phospholipids in the formation of 'phospholipid bilayers'- the ideas of polar/hydrophilic and non-polar/hydrophobic are very important here. What are all the names for the cell membrane? Describe the 'fluid mosaic model'. What is the difference between integral membrane proteins and peripheral membrane proteins? What are some of the roles for these membrane proteins? What is meant by the term 'receptor? Why would Define diffusion. In a membrane, what would be the difference between simple you need pores for diffusion? diffusion and facilitated diffusion? What is meant by the term 'semi-permeable"

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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.