Year 12s: what will be the first way you research your future options? >>

Biology Courcework What to do...

Its got to that time of year where ive got to start thinking what to do for my individual investigation and i reaily am unsure what to pick, im after an experiment with good theory base relevent to the cource and also can give strong accurate results in which i can make a detailed anaylsis i been thinking of something to do with photosynthesis or enzymes but wasn't sure what didn't know if anyone had any ideas of what i could do?