CAIE IGCSE Biology 19.4.6 Interpreting Population Graphs
Practise describing trends, comparing populations and calculating changes from graphs, tables and growth diagrams.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- describe an overall trend and support each comparison with accurate values from the graph
- calculate percentage increase, infected proportion or halving time and follow rounding instructions
- infer a plausible population event only when the plotted change and context support it
19.4.6—Interpret graphs and diagrams question 1
Genetically modified bacteria were grown in a fermenter. The number of bacteria was measured, and the data are shown in Fig. 5.1.
Fig. 5.1
Calculate how long it takes for the number of bacteria to reduce by half after the bacteria have been in the fermenter for 24 hours. hours
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