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Investigation into the Effect of Temperature on the rate of Respiration of Yeast
Member rating: No Rating | Words: | Submitted: Fri Mar 18 2005
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1 Sean Sandford11B Biology Coursework- Investigation into the Effect of Temperature On the Rate of Respiration of Yeast Preliminary Work For my preliminary work, I am working with 35ml of yeast. I think that this is the best volume to use as it is about 3/4 of a test tube full, and it allows for the yeasts expansion when heated. I am trying to find out the best range of temperatures to be used in finding out the respiration of the yeast, and I am also trying to find an equilibration time that can be used in the main experiment, as the time taken for the yeast to heat up to the desired temperature. Apparatus - One beaker - Two test tubes - Delivery tube with bung - Yeast (35ml) - Water - Stopwatch - Thermometer - 35ml syringe Method 1. A beaker was filled with water then heated to the desired temperature. 2. A test tube was then filled with 35ml of yeast and placed...
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