Preliminary Analysis

Topics: Organic compound, 1990s music groups, Addition Pages: 2 (634 words) Published: December 9, 2012
Preliminary Analysis
Samples tested in this lab are sample numbers: 1,2,3,4,5,8,9,10,14,16,22, and 23. Using various test, we found characteristics about each individual sample which gave us a better idea on whether the sample is living, dead, organic, or inorganic. This is the same as our proposed study because we are trying to see if samples are dead, alive, organic, or inorganic. Notices our results are based on the whole group of tested samples, some results in recorded data as a whole are not accurate because of inexperienced testers. Samples 4, 8, 22 and 23 were all alive and organic substances. Using the Feulgen’s test, all of the following samples tested positive for DNA. All tested positive in the tetrazolium test from this we concluded all of the samples are alive. Next, using the burn test we measured the dry weight of each sample and burned them to find the ash weight of the sample. The above samples had significant difference in dry weight and ash weight, these samples are organic. The following samples were observed under a microscope. Sample 4 showed finer white granules, sample 8 showed cell structure, and sample 22 showed small white granules. Final conclusion based off our test results, samples 4, 8, and 22 were pronounced alive and organic substances. Samples 1, 5, 9 and 10 are the samples that are organic and dead. These samples tested positive for the feulgen’s test, which means all have DNA, although in the tetrazolium test both resulted in negative which means the sample was once living. There is a significant difference in dry weight and ash weight for these samples, so our final conclusion for sample 1, 5, 9 and 10 are both organic and dead. Samples 2, 3, and 16, are inorganic. These samples came up negative in every test; none of them had a difference in dry weight and ash weight which means they are inorganic. All had negative results in the feulgen’s test which meant there is no DNA, so the substances that tested...
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