Everything you need is in the textbook (Heinemann Biology) - well, close to everything. Make sure you read everything in there, including the stuff in boxes and stuff, I found myself skipping areas with shaded boxes and stuff but sometimes they have the most important stuff...
Make it easy on yourself, get a copy of the syllabus, and go through it with your textbook making a summary for each dotpoint. It's the only way you're going to cover everything - and remember, they can't ask you questions that aren't in the syllabus!
Other than that just summarise and read several times our however you memorise things...I learn things by drawing pictures, or making up some kind of silly mnemonic or something to go with them. (a bit of help for HSC year) I'll never forget what enzyme specificity is like, because I told myself it was like a jigsaw puzzle! And hence I can draw how enzymes work.
If you can relate your notes to something really simple, it makes them a lot easier to remember.