OCR Biology F212 HELPWatch
Here's the link: I'm sure you'll be fine, you'll probably remember most if it but a past paper can't hurt, especially since questions are often re-used, something might come up that has been on a paper before.
Also, I would say read all the mark schemes and compare them with the papers, so you're essentially reading the answers as you read the questions! You'll be fine.
Just woke up and realised I have an exam and I have done no revision since January! Someone help me out what do I do any reliable predicted papers ?