any cramming tips for a bio exam?

i already know the topics pretty well apart from like 1-2 subtopics
should i be doing past papers
or
should i review notes
or both?
i got abt 5-6 hours to study it

what i did for my bio exam was just go through they slides they gave me then organise it into my own doc and memorise the whole thing, then get people to test me/vice versa

im much younger than you tho so

spam past papers, then go over notes which u lost marks in the paper

enthalpy is must

skim all the notes and try to find things that you dont fully understand

reviewing those will also help bring back things that you learned like right before or after

I’d say prioritize past papers first and then notes, since you said you have a good understanding

Create flashcards with questions on one side and answers on the other, from the content you need to know.
Then study those flashcards using active recall (read question, answer, then look at the other side afterward).

Works wonders, after 2-3 cycles of active recall you'll know everything and be able to recall it during the exam.