Choosing GCSE subjectsWatch
ok, so you'll need:
three A levels at grade A in chemistry and either biology, physics or maths, plus another academic subject.
seven GCSEs, including sciences, with 5 subjects at grades 9 to 7 (A* or A) and English and maths at least grade 6 to 5 (B)
triple science recommended but not a big fuss at GCSE
There are no requirements for any GCSE's - don't worry basically - i.e pick whatever you want!
Triple Science is the only subject that will help you learn more concepts in preparation for A-Levels, so that is recommended
other than that - there is nothing more to say
Keep in mind you will require a B(6) in english and an A (7) in maths GCSE for most medical schools.