Definitions:
Biochemistry is the chemistry of life.
This is my favorite because it is succinct, yet all-encompassing. The other defs have may contain a little more useful information, but I think this one is poetic. ("Biochemistry is poetry?"-hmm...)

Animations:
Yes, poetry in motion! I viewed the animations of carbon- graphite, diamond, buckyball. It was helpful to see them from a variety of angles. Diamond really has an interesting configuration of staggered hexagons.. I'm looking at one of my son's toys right now- it's a buckyball! :)
The catalyst animation was pretty cool to see how molecules 'hook up' on the sticky surface.
After pondering gene therapy, I had to check out some of the bio animations. The protein synthesis one was entertaining. I think I was able to discern what the flying pink clovers and fortune cookies were suppose to be. (labels are for rookies, huh?)