biology practical notes (comprehensive 2025-2026 Prelims + Past Year A level Questions)

General Tips Generic - Read all the steps in the question and all the questions within each section → MARK out the measurement steps - Attempt the experiment - If cannot do ask for help - else → if you vaguely know the trend just fake because the results is gonna be 1 mark anyways and its attributed to the trend - Keep aside 30-40 minutes for planning (depending on how good you are at it) Microscopy - Get rid of all the bubbles in the slide! - If cannot see the organelles then use the condenser to adjust the light intensity - Take note of the relative shape of the cells that is what's most important for the drawings Must know very well topics - Cell Structure - Membranes - Photosynthesis - Respiration - Enzymes - MolTech - GBV (specifically the tests)

Drawings Plan Diagram

Cell Drawing In general u should draw the cell membrane and the nucleus if logically u can see it

Starch Grains

look at: