tbqh, i don't think you have any grounds to complain and even if you did, you wouldn't be successful. Get an inspection if you want to know exactly what you wrote but they're not going to reverse their decision on a borderline answer. Whilst I have no idea what your answers on the exam were, nothing about your SoM suggests that you weren't treated fairly. The two examiners marking your script may have differing opinions on an answer - that's why there are two of them. Pretty much, yeah, you lost a few marks but it's not that big a deal.
Not sure how i managed to get it wrong, pretty sure i just talked about how its soluble because hydrophilic means dissolve in water etc.
Did you state why hydrophilic means it will dissolve and did you state that the hydrophobic groups were contained within the core of the protein and thus not exposed on the cell surface?
2c) 1/2 ? To prevent him from getting scratched again  why has one examiner given me 0/1
 why has one examiner given me 0/1
Because that's not why he was told to do that. If you wrote that, you're lucky to have gotten 1/2.
5d) 1/2 Another easy question, it needs to block the active site! How did one examiner give 0/1
Did you just write "to block the active site" or did you specify the protease?