For biochem, I reviewed the notes everyday after class. Then, I would try to reorganize teh information in a way that made sense to me.
For example, when we learned about all the different names for different lipid-derivatives, i drew out a big "family tree" of lipids.
Also practice drawing sequences of reactions (ex, glycolysis, etc) on a dry erase board. Rewrite it until you've got everything about glycolysis on teh board written in a way that makes sense (taking random tidbits that your teacher might ahve mentioned about glycolysis mixed in w/ notes on other sections). Then I would take several sheets of white paper, tpae the sides together, and redraw my perfect rxn sequence or cycle or whatever on the sheet of paper.
I hope that helps!