241 and Ibuprofen Solutions

988 WordsOct 8, 19994 Pages
Ibuprofen Abstract The project that I chose to research was the effect of Ibuprofen on the heart rate of the daphnia. The reason that I chose to do this was because many people in society use over the counter pain killers without really understanding any of the long term effects of this medicine other than clearing their aches pains, and swelling. One of the leading drugs on the market today is Ibuprofen which you may know as Motrin or Advil. Both drugs are identical except for quantity and price, and even there it might be the same. The organism I chose to work with is a crustacean called the Daphnia. Later in this report I will attempt to explain the significance of that organism and why I chose to conduct tests on it. I then,…show more content…
249 243 245 245 247 OVERALL AVG. 246 After having gained a control from which I would base my experiment on I created Ibuprofen solutions of varying concentrations using the water from the environment of the Daphnia as to avoid creating another variable which might affect the heart rate. I created the different concentrations by means of " Serial Dilution". I did this progressively until I reached a 5% concentration. After having created the dilution's I subjected 5 Daphnia to each solution and observed their heartbeats as shown below: Heart Rate with Ibuprofen Solutions... CONCENTRATIONS 90% 45% 22% 11% 5% 1 240 240 248 242 248 2 259 244 243 251 242 BEATS 3 243 237 241 235 251 4 253 246 241 248 243 5 242 247 247 252 249 PER 6 260 241 246 241 241 7 251 248 243 240 239 8 239 240 249 248 246 MINUTE 9 259 243 245 249 252 10 246 249 249 245 237 TIME(MIN.) 7 9 13 18 23 SPONTANEOUS HEART- RATE INCREASE ... SPONTANEOUS HEART FAILURE Results At first my results showed no change in the heart rate of the Daphnia. Within a certain time, according to each solution, there was a spontaneous increase in heart rate and then a spontaneous heart failure. This occurred in all solutions progressively from 90% in 7min. To 5% in 23min. Discussion I believe that this lab helped me learn how to research and experiment with scientific data more so than I did

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