giants2010

If you just want to pass the exam, then I think you can get away with not knowing them off by heart.

At most they will be worth 1 or 2 marks on the exam. I don't believe whether you pass or fail will come down to something so small and I personally wouldn't fret over it.

If you have the time to learn them all then by all means do it, but as you get closer to the exam you'll probably have to make a choice as to how you spend your remaining revision time. Much better to spend it on 'popular' stuff like Du Pont analysis I think.