Murder And A Meal Lab Report Essay - 1342 Words

Garrett Stewart Mr. Dinunzio Honors Biology 22 November 2016 Murder and a Meal Lab Report The purpose of this lab was to test different substances using various procedures to see what biomolecules were present and ultimately find out what restaurant Anna Lyza had eaten at before she died. For the first control test, we used vegetable oil to test for lipids. So, if the solution does not contain lipids, it does not become translucent when placed onto a paper bag square and held up to a light. So, it is a negative result. However, in the presence of lipids, the solution will become translucent when placed onto a paper bag square and held up to a light. Therefore in this case, the result is positive. On the other hand, we used albumin egg to test for proteins in another control test. If the solution does not contain proteins, it will not experience any color change and so it is a negative result. When there are proteins existing in the solution, it will turn bluish/purplish and for this reason it is a positive result. Furthermore in the third control test, we used dextros e to test for simple carbohydrates such as glucose. If the solution does not contain simple carbohydrates, it will not undergo any color change and will remain a blue color. So, it is a negative result in this circumstance. If there are simple carbohydrates present in the solution, the solution will turn reddish and so the result is positive. For the last control test, we used starch solution to testShow MoreRelatedSteven Truscotts Wrongful Conviction3272 Words   |  14 Pagesconsider any other suspects, even though there was no physical evidence linking him to the murder. He was arrested 24 hours later, and stood trial as an adult. (Steven Truscott | Murderpedia). 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