So, german citizens had to conform to the Nazi parties ideals and were considered the best race by the Nazi's. If they spoke out against the nazi party they could be detained or worse. Officials organized attacks and were basically in charge of the soldiers in most regards. I believe this is all correct, good luck!
There's not really an explanation, that's just a fact. A phospholipid bilayer has two layers of, yep, phospholipids. They stay together well and kind of move around a little, allowing small particles to pass through. There are some proteins in them also that help them function as cell membranes.
