Biology

Assessment

AS and A2 units have a 40% and 60% weighting respectively. An E grade in both Units 1 and 2 at AS level is the minimum requirement to continue onto the A2 course. AS Level Units. These carry a 40% weighting of the final A2 award. Unit 1. Basic Biochemistry & Cell Organisation 20%) Unit 2. Biodiversity & Physiology of Body Systems (20%) A2 Level Units These carry a 60% weighting of the final A2 award. Unit 3. Energy, Homeostasis & the Environment (25%) Unit 4 Variation, Inheritance and Options (25%) Unit 5. Practical assessment (10%)