There was a pattern revealed in the results, within the three trials of all pH levels they were all consistent numbers. Also, when the pH is acidic there will be very little oxygen produced, when the pH is neutral it will have the highest enzyme activity and when its basic it will start to produce less oxygen again. Each pH level had different concentrations, pH 4.8 which was the most acidic produced 2, 1 and 2mls of foam. pH 5.3 which is slightly acidic produced 2, 4 & 2mls of foam. pH 7.4 which is close to neutral produced 30, 32 and 30mls of foam and pH 8.7 which is slightly basic produced 30, 31 & 34mls of foam. In the data, the results showed that pH level 4.8 produced the lowest foam which averaged at 1.67mls and the pH level which produced
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However, improvements that can make it more effective are to time the reaction for longer to see if it can produce more oxygen. Another improvement could be, before completing the real practical, practice the steps of the experiment to make it more dependable. The results are not reliable, as the results showed that pH 8.7 had the highest activity. However, research shows that pH 7 should have the highest enzyme activity. In every experiment, there are random and systematic errors. A possible systematic error might be that the scales are faulty and did not give accurate measurements of the weight, thus making the results unreliable. A systematic error that did occur was the pH concentrations were not close enough to what they were labelled to be, 3, 5, 7, and 9. A random error that may have occurred was when measuring the meniscus of the pH levels, might have been reading it from the wrong angle, also the experiment might not have been timed for exactly one minute, it could have been a couple seconds over. The results within the data were very precise. Each trial set had very close numbers within the enzyme activity, for example the oxygen produced for pH level 7.4 measured 30, 32 and 32. The data was also reliable, as the potato mass was measured a few times all giving the same quantity each time and in addition, every pH level had the same amount added into the beaker, this was done to make a fair
However, improvements that can make it more effective are to time the reaction for longer to see if it can produce more oxygen. Another improvement could be, before completing the real practical, practice the steps of the experiment to make it more dependable. The results are not reliable, as the results showed that pH 8.7 had the highest activity. However, research shows that pH 7 should have the highest enzyme activity. In every experiment, there are random and systematic errors. A possible systematic error might be that the scales are faulty and did not give accurate measurements of the weight, thus making the results unreliable. A systematic error that did occur was the pH concentrations were not close enough to what they were labelled to be, 3, 5, 7, and 9. A random error that may have occurred was when measuring the meniscus of the pH levels, might have been reading it from the wrong angle, also the experiment might not have been timed for exactly one minute, it could have been a couple seconds over. The results within the data were very precise. Each trial set had very close numbers within the enzyme activity, for example the oxygen produced for pH level 7.4 measured 30, 32 and 32. The data was also reliable, as the potato mass was measured a few times all giving the same quantity each time and in addition, every pH level had the same amount added into the beaker, this was done to make a fair