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Name:GCSE BiologyRequired Practical Question BookMARK SCHEMEGCSE Biology required practical activity 1: MicroscopyMark-schemes might vary slightly for these qs due to scaling of imageBL2HP-QP-JUN15 (Question 4)BL3HP June 2014AQA-BIOL1-QP-JUN16.PDFGCSE Biology required practical activity 2: Microbiology = 1 7B =3 7C = 17D = 46B = 46C = 4GCSE Biology required practical activity 3: OsmosisAQA-BL3HP-QP-JUN16 (Question 1) Biology required practical activity 4: Enzymes (Effect of pH on digestion of starch by amlyase) Biology required practical activity 5: Food testsMarkscheme1. separate sample for each test;2. equal volume of each sample;3. simple sugars :- Benedict’s ;4. heat / boil; ignore warm5. stays blue is negative6. blue to green / yellow / orange / brown / red / AW;7. protein:- biuret or sodium/potassium hydroxide + copper sulphate;8. blue to mauve / purple/violet;9. repeat;10. safety -not tasting;11. general safety point;Reject colour changes if reagents totally wrong e.g. iodine / sodium chlorideAccept inaccurate spelling for name of test or reagents if recognisableIf not recognisable, but cannot be confused, then accept the colour change but not for test or reagent.[max 6]GCSE Biology required practical activity 6: PhotosynthesisAQA-BL2HP-QP-JUN16 (Question 2) Biology required practical activity 7: Reaction Time Biology required practical activity 8: Germination (effect of light or gravity on seedling growth) Biology required practical activity 9: Field investigations (Question 7)BL2HP-QP-JUN15 (Question 2) Biology required practical activity 10: DecayBL2HP-QP-JUN15 (Question 1) (but langage modified) ................
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