The Cell

While the static diagrams you have in your text are great and all, go here for a tutorial on the different organelles in a cell and here for a tutorial on cell membranes. Both tutorials go in to cells in a bit more detail than you're responsible for, but they're still pretty good. You won't be disappointed!

Organic Molecules

If you're having trouble visualizing the organic molecules we talked about in chapter 3, it might help you to visit this website. It has 3D molecular models that you can manipulate.