Well, at least based on my test, I'd say you're in luck, b/c I had almost no straight biochem. The one question I had on glycolysis asked about enzyme regulation and you had to identify the upregulated enzyme on a fully labeled glycolysis pathway they gave you. Like just about everything on the test, the biochem questions emphasized understanding the pathways - regulation and integration more than knowing every enzyme and intermediate. I had a few metabolic disorders as well; know the presentation, enzyme, what would be increased/decreased, etc. Very UW style at least on my test.