Biology Edexcel International A Levels

Hello All,

Has anyone here taken this exam and can comment on how the real exam is compared to the exam materials found in the link below:

http://qualifications.pearson.com/en/qualifications/edexcel-international-advanced-levels/biology.coursematerials.html#filterQuery=Pearson-UK:Category%2FExam-materials

Is the real exam much harder than the questions found in the exams in the weblink? Just wanna know so that I don't get shocked on the real exam.

Thanks Guys!