Website
http://www.aqa.org.uk/subjects/science/as-and-a-level/biology-7401-7402
Units
Unit 1: Biological Molecules
Unit 2: Cells
Unit 3: Organisms Exchange substances with their environment
Unit 4: Genetic information, variation, and relationships between organisms
Textbooks
AQA Biology 2nd Addition Year 1 and AS (ensure it is the one re-written for the linear qualification)
Biozone AQA Biology 1 student workbook