1. All cells have plasma membranes, but NOT all cells have walls. (a)  Discuss why this is significant and include an example to make your point (b) Discuss why antibiotics are NOT effective treatments for viral infections (c) Discuss why red blood cells are best stored in a 0.9% solution of sodium chloride (saline); (d) what would happen if the RBCs are placed in distilled water and why? 2.  Discuss 3 MAJOR differences between fermentation and respiration. Be specific.