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beet root lab report
Lab Report: To investigate the effect of temperature of the permeability of cell membranes
DCP (Data Collection and Processing Section)
Raw Data
Absorbance of the colored beetroot solution at 565 nm of different temperatures of 30℃, 40℃, 50℃, 60℃, and 70℃
Temperature (℃)
(± 0.1℃) Absorbance of the colored beetroot solution at 565 nm (± 0.001 AU)
Trial 1 Trial 2 Trial 3 Trial 4 Trial 5
30 0.160 0.129 0.136 0.135 0.128
40 0.481 0.343 0.376 0.491 0.410
50 0.386 0.597 0.378 0.743 0.453
60 0.782 0.771 0.819 0.936 0.791
70 1.029 1.026 0.963 1.096 0.905
Processed Data
Average absorbance of the colored beetroot solution at 565 nm of different temperatures of 30℃, 40℃, 50℃, 60℃, and 70℃
Temperature
(℃)
Average absorbance of the colored beetroot solution at 565 nm (AU) Standard Deviation (AU)
30 0.138 0.013
40 0.420 0.065
50 0.511 0.156
60 0.820 0.067
70 1.004 0.073
For Calculating Averages:
Average: (Trial 1+Trial 2+Trial 3+Trial 4+Trial 5) / Number of Trials
(0.160+0.129+0.136+0.135+0.128) / 5 = 0.138
Standard Deviation:
Done by Excel
Presentation

*Error Bars: The error bars represent one standard deviation above the below the mean. The longer the error bars, the less reliable the data is.
CE (Conclusion and Evaluation)
Conclusion
The trend in the data supported the theory that temperature affects permeability of cell membranes. The above graph proved as the temperature of water increases, the absorbance of the colored beetroot solutions increases. For example, when the temperature was 30℃, the average absorbance was 0.138AU, while the average absorbance was 1.004AU in water temperature of 70℃.
Furthermore, the Standard Deviation of data was varied depend on the temperature. The most unreliable data was the absorbance of colored beetroot solution in the temperature of 50℃ since the SD was 0.156 that was pretty high. In contrary, the SD in the absorbance of beetroot at 30℃ temperature of water was 0.013 that indicates
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