The course is made up of two papers which are examined at the end of year 11. The papers are 1hr 15 mins long.
The specification which lists all the course content that you need to know can be found here.
Biology TRILOGY (H/F) paper 1 13 May (pm) 1hr 15 mins
Biology TRILOGY (H/F) paper 2 09 June (am) 1hr 15 mins