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An investigation into the effect of temperature on the rate of reaction of yeast.
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An investigation into the effect of temperature on the rate of reaction of yeast. Aim My aim is to view the effects of different temperatures on the rate of respiration of yeast in a glucose solution. I will do this by measuring the rate of which carbon dioxide is given off (CO2) by the yeast. Scientific knowledge From previous experiments I have learnt several things about yeast and enzymes. I have learnt that an enzyme is a natural catalyst, (something that speeds up the experiment without altering the out come.) Yeast is a fungus that is used in fermentation this is because it respires anaerobically and aerobically, the anaerobic respiration is the useful bit in fermentation as it produces ethanol (alcohol). The sucrose solution that the yeast is put in is needed as energy so that the enzymes in yeast can respire. The equation is: Glucose Carbon dioxide + Ethanol From a similar experiment with amylase...
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