For AQA A in the first paper you dp a comprehension thing then an argue/persuade/advise essay (one of the 3 or a combination of 2...so a choice of 4 essays). In the second paper you do an essay comparing 2 poems from other cultures, from the anthology and then an inform/explain/describe essay (similar format to the argue/persuade/advise one). Each exam is worth 30% of the total GCSE, and you get 1hr45 for paper 1 (1hr on comprehension, 45mins on essay recommended) and 1hr30 for paper 2 (45mins for each section recommended).
For coursework there's creative writing (a story basically), media (ours was analysing 2 magazine covers), Shakespeare and a pre-1914 novel (Dickens/Bronte for example). Overall 20% of the GCSE.
Then there're Speaking and Listening assessments which can be anything really...group discussions, individual speeches, even guiding people round school on open day counted as one of ours. You'll do a lot of these, of which I think the best 3 count. These are also worth a total of 20% of the GCSE, which I think is more than it should be, but I'm not complaining =).
As for cheating, the school marks the coursework but then it's all moderated externally to make sure it was marked fairly, so it's not possible. If the school continuously marks things too high or whatever then they might be subject to investigation, but I don't know much about that.