The following worksheets are written for the current OCR A level Biology specification.

Every worksheet has a mark scheme with full workings for the calculations. This allows students to mark their own work, see how to modify their answers and also allow teachers or tutors to mark the student’s work.

These worksheets are not endorsed by OCR, nor is this website affiliated with OCR. These worksheets are written on the basis of a teacher using their professional judgement in  interpreting the OCR A level biology specification.