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CAIE IGCSE Biology 22.3.5 Plot Analyse and Present Biological Data Questions

Practise plotting and presenting biological data: label variables and units on axes, place points accurately, and draw justified best-fit lines or curves.

Syllabus
2026–2028
Course
Biology 0610

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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