AQA Required practical revision notes/sheets covering the 12 A-level required practicals (redox indicator & respirometer included for required practical 9) Despite being worth 15% of the marks, so many students don’t allocate specific revision time to the required practicals. I designed these sheets for my own students to encourage specific revision of the practicals and have seen a great improvement in practical knowledge and the ability to answer practical-based questions. Each sheet includes key information, an example method (where relevant) and most importantly, exam-style questions and model answers. The model answers for the exam-style questions have been written based on previous mark schemes, but I cannot guarantee that future mark schemes will be exactly the same. The model answers are for guidance only. Students should be encouraged to use these sheets as a starting point and update/annotate with any further information as needed. This resource can also be purchased as part of the Ultimate AQA A-level Biology Revision Bundle, which includes: Section 1-8 Flashcards Practical skill flashcards Required practical 1-12 revision sheets Year 13 spaced repetition timetable Printable weekly revision timetable

UPDATE June 3rd 2024: Typo on potometer sheet now corrected. OCR Required practical revision notes/sheets covering the 12 PAGS required for A-level Biology. Please note, not all possible variations for each PAG are included, please see below for exactly which specific practicals are included. Despite being worth 15% of the marks, so many students don’t allocate specific revision time to the required practicals. I designed these sheets for my own students to encourage specific revision of the practicals and have seen a great improvement in practical knowledge and the ability to answer practical-based questions. Each sheet includes key information, an example method (where relevant) and most importantly, exam-style questions and model answers. The model answers for the exam-style questions have been written based on previous mark schemes, but I cannot guarantee that future mark schemes will be exactly the same. The model answers are for guidance only. Students should be encouraged to use these sheets as a starting point and update/annotate with any further information as needed. Includes: PAG 1: microscopy - root tip squash PAG 2: dissection (general practical skills/questions relevant to any dissection) PAG 3: sampling techniques PAG 4: rates of enzyme-controlled reactions (covers general questions on e.g. initial rate of reaction, DOES NOT cover specific enzyme practicals due to there being so many different variations). PAG 5: 3 different practical sheets included (factors affecting membrane permeability, determining glucose concentration & potometers). PAG 6: 2 different sheets included (electrophoresis & using chromatography to investigate plant pigments [paper chromatography method, not TLC]. PAG 7: Microbial techniques, 2 different sheets included (effect of antibiotics on bacterial growth & dilution plating to determine microbial density) PAG 8: Calibration curve to investigate water potential PAG 9: Qualitative tests for biological molecules PAG 10: Data logger & computer modeling (methods not included for this PAG, just key points from previous mark schemes). PAG 11: two sheets included (effect of exercise on heart rate & heart rate changes in Daphnia). PAG 12: research skills (rate of respiration example used - also includes common questions on respirometers).