About Questionbank & Past Exams

Hi guys

I just have some few questions, and it'd be wonderful if anyone can help me out!

1. Does anyone know how to find questions on the question bank that combines 2 chapters? (If anyone knows any Biology SL question sets that is Cell + Ecology, please msg me! Thanks)
2. Where do you think I'll be able to find the past exam papers of 2016 May Exam?

Thanks!