Alternative to Practical

Worked examples (14)extended set

• 1Reading the results of food tests
• 2Describing the biuret and iodine tests
• 3Measuring roots and drawing a results table
• 4Variables and a control experiment
• 5Spotting the errors in a student's graph
• 6Using a calibration graph to find an enzyme concentration
• 7Actual size and magnification of a fly's wing
• 8What is wrong with this biological drawing?
• 9Anomalous result, mean and percentage change
• 10Sources of error and improvements in a yeast experiment
• 11Safety: naming the hazard and the precaution
• 12Planning an amylase and temperature investigation
• 13Protein colour standards and a dilution
• 14Histograms and sampling leaves

Model answers (6)

• ✓Model answer — Paper 6 short-answer style
• ✓Model answer — Paper 6 short-answer style
• ✓Model answer — Paper 6 calculation style
• ✓Model answer — Paper 6 structured style
• ✓Model answer — Paper 6 structured style
• ✓Model answer — Paper 6 extended planning style