CAIE IGCSE Biology 22.3.5 Plot Analyse and Present Biological Data Topic Practice

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22.3.5 Plot, analyse and present biological data question 1

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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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