The Inner Life of a Cell

PZ Myers, over at Pharyngula, draws our attention to an animation of the inner workings of a cell. The animation is available here, together with some background. Since I am not conversant with molecular biology, I could have done with some more explanation of what I was seeing. But there are some arresting images, like the motor protein that looks like an alien tightrope walker pulling a huge balloon (apparently, a large bag of lipids).