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The effect of different sugar substrates on the rate of yeast respiration
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| Submitted: Wed Jan 17 2007
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The effect of different sugar substrates on the rate of yeast respiration AIM In this investigation I will be using various sugars to see the effect on the rate of respiration of yeast. The sugars I will be using are glucose, fructose, sucrose, maltose and galactose. All the sugars used will be of a 2%concentration. In order to obtain my results I will use the same type of yeast i.e. Bakers yeast. I will place the 2% solution of the sugars in a waterbath at 35ºc. Together with the sugars I will place 20cm³ of yeast solution. I will measure out 25cm³ of both sugar and yeast and place them into a conical flask in the same waterbath. As soon as I do this I will place the rubber bung and delivery tube which will be attached to the gas syringe and onto the flask. I will then measure the volume of...
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