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Biology - Secondary Data Results

Essay by   •  September 15, 2016  •  Lab Report  •  484 Words (2 Pages)  •  1,020 Views

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Secondary Data Results[pic 1]

Each enzyme has an optimum temperature at which it performs best. Below or above this temperature, the enzyme loses its functionality. Table 1 shows the results obtained on how enzyme activity of salivary amylase is affected by temperature. Extreme temperatures cause the native folded structure of proteins to uncoil into random configuration. As a result, the protein loses its biological enzymatic activity. This denaturisation consequently leads to loss of activity. Figure 1 shows the graph of the reciprocal of time against temperature based on the data from Table 1.

[pic 2]


Biochem lab results of the experiment enzymatic activity of salivary amylase.[pic 3]

This secondary evidence is relevant to the hypothesis in a way appropriate to the topic because the time for the reaction to complete is shown by the time in minutes. The 4 degrees reading and 70 degrees reading shows that the reaction does not occur. This is because the temperature is too low at 4 degrees so the substrate and enzyme do not have enough kinetic energy. When the temperature is 70 degrees the enzyme denatures and the reaction does not occur. The quality of the source of secondary data is good because it is from a reliable source which a scientific journal is called Biochem Lab. However they have not repeated the experiment so it is not that reliable because I have nothing to compare it to therefore there could be anomalies and I would not know.

[pic 4]

This piece of secondary data is from  which is from Dr Parry’s Website which is a teacher’s revision website.

This piece of secondary data can test my hypothesis because it is exactly the same experiment as I did. Also, the results show the test for starch at different temperatures so you can see how the starch is digested by the enzyme at different temperatures so we can see the effect of temperature on the enzyme and this is the aim that I want to test in my hypothesis. The quality of this evidence is quite good because it shows you the actual colour that the colour turns so you can decide for yourself what colour it is. Also a teacher has carried out this experiment so the teacher is more experienced and has a higher level of accuracy and ability while doing experiments. Hence, the results from this experiment are more reliable. However the results are not in the form of a table so it is not clearly displayed and this is the only bad thing therefore when I process this data I will put it into the form of a table so it is clearer. There are no anomalies because there isn’t any abnormal colours they follow an order of blue/black, red and then yellow. This means I will be using all the secondary data because it is all reliable and there are no anomalies.



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