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An investigation to find the lowest temperature that kills all the yeast cells in a suspension of bakers yeast.
Member rating: No Rating | Words: 2189 | Submitted: Sat Feb 09 2008
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An investigation to find the lowest temperature that kills all the yeast cells in a suspension of bakers yeast. Contents Page 1 - Hypothesis and introduction Page 2 - Introduction, risk assessment Page 3, 4 - Risk assessment, Pilot study (method, results, conclusion and evaluation) Page 5 - Variables, Equipment list Page 6 - Equipment list, Precision and accuracy, final method Page 7 - Final method Page 8 - Intended treatment of results, References Page 9 - Evaluation of references Hypothesis This investigation involves studying the fungi, yeast, to see how it responds to different temperatures. Based on the effect high temperatures will have on the enzymes of the yeast a sensible prediction would be that higher temperatures, above the optimum, around 50ºC would kill yeast cells. Introduction Yeast is a unicellular, eukaryotic, fungus and as so generates energy from respiration as shown below in this simplified equation. Inside the yeast cell enzymes control this reaction. Enzymes are globular proteins which act...
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