AQA A LEVEL BIOLOGY PAPER 1 MARKING SCHEME 2020. 100% CORRECT questions, answers, workings and explanations. Whatsapp +25479 093 7672 for assistance. Question Marking Guidance Mark Comments 01.1 1. (ATP to ADP + Pi ) Releases energy; 2. (energy) allows ions to be moved against a concentration gradient OR (energy) allows active transport of ions; 2 1. Reject ‘produces/makes/creates energy’. 2. For ‘ions’ accept Na+ or K+. 2. Do not accept if this movement is of glucose not ...