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Cambridge IGCSE Biology practical skills

The practical skills you can be asked about in the exam. Each sheet has the method, variables, risk assessment and a results table to fill in, with example results and exam questions, and prints as a PDF. Paper 5 (Practical Test) or Paper 6 (Alternative to Practical) tests these skills and is worth 20% of the IGCSE.

1Factors that affect diffusion (agar cubes)Movement into and out of cells · Diffusion · spec 3.1.5 PDF9 pagesRevision noteOpen sheet
2Osmosis using dialysis tubingMovement into and out of cells · Osmosis · spec 3.2.4 PDF10 pagesRevision noteOpen sheet
3Plant tissue in solutions of different concentrationMovement into and out of cells · Osmosis · spec 3.2.5 PDF9 pagesRevision noteOpen sheet
4Effect of temperature and pH on enzyme activity (amylase)Enzymes · Enzymes · spec 5.1.5 PDF9 pagesRevision noteOpen sheet
5What a plant needs for photosynthesisPlant nutrition · Photosynthesis · spec 6.1.7 PDF8 pagesRevision noteOpen sheet
6Factors affecting the rate of photosynthesisPlant nutrition · Photosynthesis · spec 6.1.8 PDF9 pagesRevision noteOpen sheet
7Light, dark and gas exchange in an aquatic plantPlant nutrition · Photosynthesis · spec 6.1.9 PDF7 pagesRevision noteOpen sheet
8The pathway of water through a plantTransport in plants · Water uptake · spec 8.2.4 PDF8 pagesRevision noteOpen sheet
9Temperature, wind speed and transpirationTransport in plants · Transpiration · spec 8.3.3 PDF9 pagesRevision noteOpen sheet
10Physical activity and heart rateTransport in animals · The heart · spec 9.2.4 PDF8 pagesRevision noteOpen sheet
11Inspired and expired air: limewater testGas exchange in humans · Gas exchange in humans · spec 11.1.3 PDF8 pagesRevision noteOpen sheet
12Physical activity, rate and depth of breathingGas exchange in humans · Gas exchange in humans · spec 11.1.5 PDF9 pagesRevision noteOpen sheet
13Temperature and respiration in yeastRespiration · Respiration · spec 12.1.2 PDF9 pagesRevision noteOpen sheet
14Phototropism and gravitropism in seedlingsCoordination and response · Tropic responses · spec 14.5.3 PDF9 pagesRevision noteOpen sheet
15Conditions needed for germinationReproduction · Sexual reproduction in plants · spec 16.3.8 PDF8 pagesRevision noteOpen sheet
16Continuous and discontinuous variationVariation and selection · Variation · spec 18.1.5 PDF9 pagesRevision noteOpen sheet
17Biological washing powders and temperatureBiotechnology and genetic modification · Biotechnology · spec 21.2.4 PDF9 pagesRevision noteOpen sheet
·In the revision notesMagnification and actual sizeOrganisation of the organism · Size of specimens · spec 2.2.1, 2.2.2, 2.2.3 Read
·In the revision notesFood testsBiological molecules · Biological molecules · spec 4.1.3 Read
·In the revision notesStructure of an insect-pollinated flowerReproduction · Sexual reproduction in plants · spec 16.3.1, 16.3.2 Read
·In the revision notesPlanning an investigation: variables, controls, range and repeatsExperimental skills · Practical skills · spec S1 Read
·In the revision notesBiological drawings and measuring specimensExperimental skills · Practical skills · spec S4 Read
·In the revision notesIndicators and tests: limewater, hydrogencarbonate, universal indicator and litmusExperimental skills · Practical skills · spec S6 Read