Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Data Collection Temperature (°C) Number of Bubbles 10 0 20 14 30 17 40 17 50 19 60 24 70 35 80 48 Data Analysis and Conclusion The data shows a clear rise in yeast respiration as the temperature is raised. Although an optimum temperature is not evident, it can be seen that temperatures exceeding 60°C speed up the reaction. This shows the general rule that reactions become faster when the temperature is increased. Unfortunately this data does not seem to show an optimum temperature for the enzymes in the yeast to function properly, which would be expected normally. There are several weaknesses that would have definitely decreased the accuracy of the experiment by a noticeable amount. Firstly, the temperature of the yeast itself probably would not have been equal to the temperature stated on the thermometer. The thermometer was in the beaker of water, adjacent to the flask, but the amount of time given for the yeast to equalize temperature to the water temperature may have been too short. A thermometer...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 151,713 others