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CAIE IGCSE Biology 22.3.5 Plot Analyse and Present Biological Data Questions

Practise plotting biological data by labelling independent and dependent axes correctly and drawing a justified best-fit curve for a changed condition.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • Draw a best-fit curve for changed conditions, preserving the original shape and starting point.
  • Label graph axes with the measured variable, population or time, and correct units.

CAIE IGCSE Biology 22.3.5 Plot Analyse and Present Biological Data Questions question 1

[Maximum number: 2]

Yeast is used in bread-making. It respires anaerobically, producing carbon dioxide.

A baker wants to increase the rate of carbon dioxide production in the bread-making process. The baker trialled different concentrations of glucose solution in the bread dough.
Fig. 3.1 shows the results.

Fig. 3.1

Fig. 3.1

The baker carried out the trials at 30∘C30^{\circ} \mathrm{C}.

The trials were repeated at 20∘C20^{\circ} \mathrm{C}.
Draw a line on Fig. 3.1 to show the rate of carbon dioxide production at 20∘C20^{\circ} \mathrm{C}.

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