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The effect of temperature on the production rate of carbon dioxide in yeast.  

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BIOLOGY COURSEWORK The effect of temperature on the production rate of carbon dioxide in yeast. Introduction: We are using yeast balls to work out what affects the production of carbon dioxide. The reaction to be studied is as follows: C6H12O6 C2H5OH + 2CO2 (+ 2 ATP) There are four factors which affect the reaction rates : surface area, use of catalyst, concentration and temperature. It is impossible to vary the surface area , as if the yeast balls were chopped up into small pieces, then the yeast inside would die, and so no reaction would occur. The use of catalysts is a hit-and-miss variable, as it is basically putting in random chemicals and seeing if they react. Both temperature and concentration are suitable for variation, but I have decided to change the temperature, as I do not think that varying concentration (i.e. amount of yeast balls), would be that effective. Knowledge: C6H12O6 C2H5OH + 2CO2 (+ 2...

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