for me i just wrote lots and lots of notes. definately have a look at the student notes on this site and check out other sites around like http://hsc.csu.edu.au/ as these are a really good start point if you're confused with the fundamentals of something.
i did my best to stay on top of my...
hydrogen ions increase the acidity of the blood so a buffer is there to minimise the change in pH, so if a system becomes too alkaline it'll bounce it a bit the other way to keep the pH relatively stable..without the buffer our system would be screwed (enzymes would denature, metabolism would...
ok, so maybe i'm leaving this a little late..but how does this whole external performance thing work? nothing was really mentioned in class so i'm trying to work it out now before it's a tad too late. so i'm doing music 1 and play the piano, but when i choose what to perform for the external...